Wednesday, July 13, 2022

ASICS Metaspeed Sky+ Multi Tester Review – Is More Better? 9 Comparisons

Article by Nils Scharff, Renee Krusemark, Sally Reiley, and Michael Ellenberger

ASICS Metaspeed Sky+ ($250/250€)

Editor's Note: We have updated Nils earlier review with Michael, Renee and Sally's test results.


Nils: I loved the original  ASICS Metaspeed Sky! Last year I ran a new marathon PB in it - twice! - plus personal records over 10km and the half marathon distance. Unfortunately they are sold out in my size here in Germany, therefore I had to decide on a competitor's product for my spring marathon in Copenhagen. My test pair was worn out. 

But now ASICS is back, right in time  for the upcoming World Athletics Championships in Oregon! The ASICS Metaspeed Sky+ and its quite different sibling the Metaspeed Edge+ (RTR Initial Video Review) were revealed as part of a launch event - the Meta Timetrials - in Malaga, Spain, during which various ASICS athletes proved that you can definitely run fast in these shoes. 

So the signs are good that the designers at ASICS haven't messed up my favorite shoe of last year. In fact, the changes are so minor that the decision was made to just add the plus (+) to the previous product names instead of calling for a second iteration of the Sky although the Edge gets significant changes including 5mm more foam all around and a lower carbon plate location. In the article  you will find  out what has changed, whether it is still worth investing in the ASICS Metaspeed Sky+ and how it fared on the feet of amateurs like me.


Like its predecessors, one of the best racing options on the market! Nils/Renee/Sally/Michael

Toe box is higher than its predecessor, no longer poses a risk to toenails! Nils/Renee/Sally

Great long run cruiser! Nils/Renee/Sally/Michael

Energy return and liveliness underfoot are unbeatable and even slightly better than the predecessor! Nils/Sally

The upper has become a little softer and more comfortable! Nils/Sally

“More" foam in the forefoot area is clearly noticeable - this means that the Sky+ offers more cushioning, stability and bounce in the forefoot! Nils

The steeper rocker in the forefoot increases the bounce and rolling sensation even more! Nils/Sally

Outstanding outsole! Nils

Light! Nils/Renee


For short distances, the predecessor might work a little better for me! Nils/Renee/Sally

A little heavier than its predecessor! Nils/Sally

A bit too much volume in the upper - this causes (not disturbing) wrinkles when lacing! Nils/Michael

New unisex sizing may make it harder for some women to get a good locked-down fit. Sally

Less rubber on the heel of outsole may cause durability issues for heel-strikers. Sally

Tester Profiles 

Nils Scharff: I am 32 years young, located in Heilbronn – Germany and married to my beautiful wife. I’ve done all sorts of sports all my life, often 5-7 times a week. But my running career just started 5 years ago with a company run which I joined together with some colleagues. From there I never let go. I ran roughly 1000km in my first year, doubled and then tripled that number in 2018 and 2019. I've run 8 marathons to date with a PR of 2:52. My other PRs are 17:32 for the 5k, 36:12 for 10k and 1:19:35h for the half. But besides chasing PRs and dreams on roads and trails, especially getting outside and escaping my desk is what makes my love for running (and other outdoor sports sucb as hiking or climbing).

Renee is a former U. S. Marine journalist, which is when her enjoyment of running and writing started. She isn’t that awesome of a runner, but she tries really hard. Most of her weekly 50-60 miles take place on rural country roads in Nebraska, meaning mud, gravel, dirt, hills, and the occasional field. She has PR’s of 1:30:59 for the half marathon and 3:26:45 for the marathon.

Sally is a lifelong runner and mother of five who ran her first marathon at age 54, and has now run the past eight Boston Marathons, one Chicago, and two NYC Marathons, with a Boston PR of 3:29 and a NYC PR of 3:26, good for 2nd place AG. Along the way she has raised over $240,000 for Massachusetts Eye and Ear Hospital running with Team Eye and Ear. She has achieved All-American status in the 10K (44:04), Half Marathon (1:37), 5 Mile, and 5K. She ran the NYC Marathon in 2019 to commemorate her 60th birthday and finished 2nd in her age group with a time of 3:28:39, a feat she repeated in 2021 when she ran NYC again with an all time PR of 3:26:54 (a few weeks after 5th at Boston in 3:32:24).  Sally is a compact (petite) runner at 5’2’’ and 105 pounds.

Michael is a 2019 graduate of Northwestern University Law School in Chicago and is a patent and intellectual property attorney. Prior to law school, he competed collegiately at Washington University in St. Louis (10,000m PR of 30:21). He recently finished 2nd at the Chicago Half-Marathon in a PR of 67:43. He has a 2:23 marathon PR (2nd place) from the 2021 Lakefront Marathon in Wisconsin


Samples: 217g / 7.65 oz (men EU 44.5 / US 10.5) 173g / 6.10 oz (unisex/men’s US 6.5)

                 183 g / 6.4 oz (unisex US 7.0)

Drop: 5mm (39mm heel / 34mm forefoot)

Available now. $250/250€

First Impressions and Fit

Nils: The original ASICS Metaspeed Sky already looked amazing in my book. But the release color of the Sky + is even better! The color gradient from turquoise green (velvet pines) to neon yellow (safety yellow) just looks awesome! For me as a European it’s hard to tell, but green and yellow seem to be close to the “official colors” of that track city Eugene and the University of  Oregon. So everything here is decked out for the upcoming World Championships in July and I’m here for it!

Incidentally, the glowing shoe comes in an inconspicuous ASICS standard box and no longer in the glossy box of last year. This is very commendable, as the box, and all 2022 ASICS packaging, sets high standards in terms of recycling.

From a purely visual point of view, the fact that the forefoot platform looks somehow wider than on the predecessor is immediately obvious. ASICS confirms this - 4% more foam is said to provide a springy feel in the forefoot - more on that later.

Apart from that, hardly any change from Sky to Sky+ can be seen with the naked eye. You need to step into the shoe in order to realize that ASICS has taken another step forward in terms of the upper. The mesh used is softer and more comfortable on the foot. 

In addition, the toe box is designed a little higher and since the original Metaspeed Sky cost me two toenails, that's a very welcome change!

As with most other ASICS models, the fit seems to have somewhat harmonized. I wear a US 10.5 / EUR 44.5 in almost all brands. I now fit true to size with the Metaspeed Sky+, while I was still on the edge of a EUR 44 / US 10 in the predecessor. 

The forefoot and midfoot are pleasantly wide for a competition shoe, therefore many feet should be happy here. Personally, I almost have too much room for my rather narrow foot. But the material can still be brought together securely with the help of the beautiful, ribbed laces. All in all, the first impression makes you want to run in the ASICS Metaspeed Sky+ immediately!

Renee: I’ll echo Nils’ thoughts. I loved the first Metaspeed Sky and thought it was the best option after the Next% for a race day marathon shoe. The original Metaspeed Sky had only one flaw for me. The toebox was a bit shallow and the length ran short. I normally wear a women’s size 8, although I consider my true-to-size somewhere between a women’s 7.5 and 8. I received a unisex/men’s size 6.5 in the Sky+. Compared to my women’s size 8 in the original, my Sky+ has more length and more  toebox room. Problem fixed! 

As Nils writes, the Sky+ has a few features that differ from the original, so in addition to the sizing/toebox being improved, the Sky+ features more forefoot stack/cushion and a higher placed carbon plate. 

Sally: I would love to be original but my initial impressions of the Metaspeed Sky + are very similar to those of Nils and Renee! I likewise was a huge fan of the first Metaspeed Sky, finding it the closest thing to my beloved Nike Vaporfly Next % 2 with a similar bouncy pop and fast fun feel. I always went back to the Next % for marathon race days though because my original Metaspeed Sky ran too short for me in my usual size women’s 8, and I value my toenails. 

The new Metaspeed Sky + comes in unisex sizing, so I received the size 7.0, typically thought of as the equivalent to a W 8.5. I was initially wary of the unisex sizing because I have a narrow woman’s foot and I sometimes swim in unisex shoes, but my first step in assured me this was not a problem. This shoe fits my foot comfortably and securely, with enough length that is even further improved upon with a higher toe box than the predecessor. Where the original ran short, this new version fits more true to size and is more accommodating to a wider foot. And the wonderful soft cushioned feel underfoot is even more exaggerated in this version. Let’s run!

Michael: My men’s 8.5 is a good enough fit, though I think I could have worn an 8.0 without issue (which, in racing, I always prefer… better to be too small than too big!). Still, in the grand scheme, I’d call these true-to-size, and I’m sure the larger size will benefit for long runs.


Nils: Just as the upper of the Metaspeed Sky was an evolution of the Metaracer’s, the resemblance in the new Metaspeed Sky+ is striking. As in the previous year, the base material is a transparent mesh material that can hardly be made more breathable. The stitched-in cross braces can also be found on the outside, which give the material structure and robustness. But these struts have become narrower in the Sky+. Especially over the forefoot more of the translucent black base mesh material can be seen. As a result, the entire upper material is less stiff and nestles more comfortably against the foot - all in all a very successful revision.

By the way, there are no additional, reinforcing layers on the upper material. A soft toe protector is the only exception. It is internal and slightly rubbery. However, since I would not recommend running the ASICS Metaspeed Sky+ barefoot anyways, the choice of material makes no difference there.

The padding around the heel and entry is identical to the previous model. There is exactly as much as you need here - no more and no less. But here, too, the liner over the padding feels a little finer and smoother - the heel padding also appears to be of higher quality and more comfortable. The effect is also corresponding: Where I still had to put blister plasters on my heels as a preventive measure in last year's Sky, this problem has disappeared in the Sky+.

The heel cap in the rear area of ​​the shoe has changed - if one can speak of an explicit cap at all. But the heel area is definitely stiffer and offers more support and stability. A small but very welcome change!

The tongue of the Metaspeed Sky+ consists of a wafer-thin layer of suede-like material. Unpleasant pressure from the laces is not felt, even though I have to tie the shoe together quite a bit, especially in the forefoot for my narrow feet. The lockdown in the forefoot and midfoot area is still top notch and even the slight compression of the material has not led to any loss of performance or comfort. At the same time, there is more than enough room for wider feet, so ASICS seems to have gone in the right direction here.

Keyword shoelaces: I was already a fan of the waxed version from last year. But the serrated or knurled laces that are now used are the best I've had in any running shoe. The only exception: the Nike Alphafly, because it uses exactly the same laces.

Last but not least, the toe box of the ASICS Metaspeed Sky+ is cut a little higher than the previous model. Since I wasn't the only one of our testers who lost a toenail on the Metaspeed Sky (1), this change was necessary. Black toes, including any losses thereof, should be a thing of the past.

Renee: Nils has all the details. The Sky+ upper/fit is more generous in length and toebox height as compared to the original (note: I wore a women’s size 8 in the Sky and a unisex/men’s size 6.5 in the Sky+). I have a low volume foot and find the upper to have a good combination of comfort and security. 

As compared to other super shoes, the upper fit is not as tight (see Comparisons at the end of the article to the PUMA FAST-R and Next%), but I don’t mind the looser fit. Runners who need a narrow midfoot fit and high arch support might find the Sky+ to be too loose.

Sally: As Nils described so aptly, the upper is a piece of art and works incredibly well. It is an improvement over the original Metaspeed Sky in that it is now made of a lightweight woven mesh called Motion Wrap, and is softer, lighter, and more breathable. 

The laces have indeed been upgraded to the sure grip serrated laces found in the Vaporfly and Alphafly and they hold like magic without the need for a double knot. The tongue has likewise been tweaked to all thin suede-like material and no mesh, well ventilated with many perforated holes. I used the extra lace holes at top to finetune the heel hold and shorten the laces a tad. From the first mile on, I never felt any hot spots or pressure points ever, as this fit screams lightweight comfort.

Michael: The upper looks and feels terrific (so light!), but is slightly more voluminous than I would like; perhaps it’s the thin and plastic-y material, but I noticed some wrinkles and bunching. Not enough to cause issues - not even enough to motivate me to mess with the lacing - but something to consider.

For some of these (appropriately) snug racing shoes, I do think a horizontal pull tab - like that on the Hoka Rincon 3 - would be awesome (especially because I’m often changing into these (a) in a rush, before the gun; and (b) having already warmed up, thus with sweaty socks (sorry). It’s a practical consideration, but one I would appreciate (on this, or any other racing shoe).

Digression: Stride-Style-Runners vs. Cadence-Style-Runners

Last year, with the introduction of the Metaspeed Sky and Edge, ASICS put forward the theory that there are basically two different types of runners: stride-style runners and cadence-style runners. These two types differ in how their stride length and cadence changes as they increase their running pace. Stride-style runners increase their stride length disproportionately compared to their stride rate, while cadence-style runners also increase their stride length, but in a similar proportion as their cadence changes.

Niles: The ASICS Metaspeed Sky+ with its high level of cushioning, the aggressive rocker design, the relatively low drop and the strong "bounce effect" in the forefoot is better suited for stride-style runners and was specially developed for them.

A counterpart for Cadence-style runners is of course the logical consequence. This is the Metaspeed Edge+ and of course I hope that ASICS will also provide me with the second rocket in the arsenal for a comparison test. This year, this comparison seems even more interesting than before, since the Edge in particular has been massively revised and brought to the same cushioning levels as the Sky although with an 8mm drop vs. 5mm for Sky with the same 39mm heel height in both. 

So while last year the Sky was often interpreted as a long-distance option and the Edge for short distances, this time around the message is very clear: There are two equal competition shoes for different types of runners. For reference: Nike does something very similar to that Vaporfly and Alphafly (more on that later), even if the brand with the Swoosh never has communicated a reason for the different models.


Nils: On paper, not much has changed in the midsole of the ASICS Metaspeed Sky+. Just like last year, ASICS' FlyteFoam Turbo is used. Even if ASICS doesn't say this anywhere, from a chemical point of view it is probably a PEBA foam (polyether block amide). Not only the unmistakable smell speaks to this, but also the haptic impression, feeling under foot and actual “noise”. Therefore it is very comparable to competing products such as Nike's ZoomX or Saucony's PWRRUN PB. According to ASICS, FFTurbo offers excellent properties in terms of weight, bounce and energy recovery and I can only confirm that after more than 60km in the Metaspeed Sky+.

The level of cushioning in the Metaspeed Sky+ also remains the same. ASICS treats us runners with 34mm of FFTurbo foam in the forefoot and 39mm in the heel area with a resulting 5mm drop. This heel stack is at the upper end (40mm maximum)  of what World Athletics allows for professional competition use.

But you probably already guessed it from my introductory words, the devil is in the details! ASICS’ research has shown that the mentioned differentiation between stride and cadence style runners should be even more pronounced. And that's exactly what they worked on with the two Plus models. By changing the placement of the carbon fiber plate and a correspondingly adjusted distribution of the midsole foam, the specifics of the two models and thus their suitability for stride or cadence style runners should be yet more focused.

For the Metaspeed Sky+, this means moving the plate closer to the runner's foot while placing more foam in the forefoot under the plate. As a result, the cushioning foam can be compressed better and more bounce can be generated - and thus the stride length of the stride-style runner is increased even further. They are kind of imitating the Nike Alphafly with its extreme bounce in the forefoot. This of course does not do justice to the immense development effort of the Japanese engineers - and I apologize for that -  but anyone who has ever seen or run an Alphafly knows what I mean.

So there is now more foam in the ASCIS Metaspeed Sky+, 4% more to be exact. The four percent are found almost exclusively in the forefoot area. 

The steeper roll-off angle in the forefoot contributes to this, as does the slight widening of the midsole. 

The entire sole geometry has thus become even more aggressive and is designed yet more for the forefoot striking runner.

In addition, the guide groove on the underside of the midsole has shifted slightly. It is moved away from the heel and further towards the midfoot. I suspect that this will further optimize the compression possibilities of the foam under the forefoot and midfoot. Unfortunately, I can't judge how heel runners get along in the Sky+. However, I suspect that the new Edge+ would be a better choice.

Renee: Nils did a great job reviewing the updates to the midsole and overall feel. I concur that the midsole is bouncy and responsive, and given the low weight, the Sky+ is probably the second fastest marathon shoe for me, after the Next%. 

That said, I find the Sky+ more user friendly because it feels great at slow to moderate paces too, and I have an easy, healthy stride with lower drop shoes. I think the Sky+ works as a distance trainer and racer, and given the lower drop and additional forefoot stack height, the Sky+ would make a good 50k+ road shoe as well. I would choose the Sky+ over the Next% for a marathon when I’m not trying to PR or for a race longer than 26.2. The Sky+ is more comfortable for me at moderate paces. Because of the stack height and plate placement, the Next% works better for me for speed workouts and race paces for 13.1 or shorter. 

Sally: The midsole is where the magic is in the Metaspeed Sky +, especially with the higher placement of the carbon plate as Nils described. The FlyteFoam Turbo foam might be a bit firmer than the ZoomX foam, but it is similarly bouncy and springy underfoot.The theory is that more foam under the carbon plate provides more energy return for “bouncy” runners who put  a lot of downward pressure on the midsole with each step then drive up, so they “bounce” higher and can take longer strides. I definitely feel my stride lengthen when I focus on accelerating and picking up the pace!

Michael: There’s something really exciting about this FFTurbo foam - not just on the run, but also visually. Maybe it’s just me, but it just looks…fast? I hope to see it drop down to more of ASICS trainers - I’m thinking a Nike Invincible competitor? Could be spectacular! As the others have said, this shoe is really terrific, and an extremely competitive racer - anchored by this midsole. Its limitations, if you could call it that, is that it doesn’t feel particularly aggressive - but it is not at New Balance RC Elite levels of “wait, this is a racer?” *, but it’s not Vaporfly-competitive. Closest competitor in terms of midsole feel may be the Hyperion Elite 2 (I haven’t worn the 3).

*This squishiness isn’t necessarily a bad thing; I’ve run two surprisingly great 2:23:xx marathons in the RC Elite 2. It just doesn’t scream…. Racing.


Niles: Just like the midsole, the outsole of the ASICS Metaspeed Sky+ hasn't changed much at first glance compared to last year. And that's good, because the predecessor had one of the best outsoles of any marathon racer.

However, the outsole of the ASICS Metaspeed Sky+ now consists of three and no longer two different materials. First there is the exposed FlyteFoam Turbo midsole material in the heel and midfoot area. Sure, there is some wear and tear here, but after more than 300km in the Metaspeed Sky (1) I can say that it hasn't affected the performance of the shoe in any way. I’m confident that this will also be the case in Sky+.

Second, there is the outsole in the forefoot area, which is still made of ASICSGRIP. The profile-forming cutouts have grown a little compared to the predecessor - but the concept is the same. Here, weight is saved and traction is generated at the same time. That's what you want from a performance shoe’s outsole. In addition, the cut-out in the midfoot area has become slightly larger to create more space for the changed guide groove.

My very scientific fingernail pressure test tells me that the rubber compound used this year seems to be a bit firmer than what ASICS used in the previous model. That surprises me a bit, because as I said, I didn't have any traction or durability problems in the Metaspeed Sky. Perhaps this is due to the ubiquitous supply chain issues? Firmer rubber could of course mean a slightly poorer performance on wet surfaces. But after it rained right at the beginning of my maiden run at the Würzburg Marathon, I can give the all-clear on this. Traction on wet roads is as good as before!

Last but not least, there is now a white rubber stripe on the medial side of the heel area instead of the previous black one. Surprisingly, this seems to be softer than the black rubber part. I would have expected the opposite, since this is a predestined place for high wear and also pronation. Yet, I  can't feel or see any effects on the running behavior whatsoever.

The profiling of the midsole foam is continued as if from a single source on the second sole material - ASICSGRIP. There they undoubtedly form part of the profile. Great level of detail!

Renee: The outsole is a good balance of giving some grip without too much extra weight. Like most marathon super shoes, the Sky+ has exposed midsole foam  which is fine. The generous amount of coverage at the forefoot is well placed. I think the outsole is on par with the best racers, aside from the PUMA FAST-R, which has a healthy amount of PUMAGrip (that shoe weighs more, however). 

Sally: I tested this shoe on wet roads and had no issues at all with traction, so this slightly modified outsole checks that box. I noted that the round holes in the forefoot rubber are now bigger to cut weight. And the shallow groove originally only under the heel now extends to the midfoot which might improve stability by centering the runner’s weight. One negative: these shoes squeak like crazy when walking on a hardwood floor! Drove my WFH daughter crazy. Minor detail. All in all, a fantastic outsole in my opinion.

Michael: We’ve had rain, but I haven’t worn these in it, so I can’t totally speak to grip… but I can confirm no issues on dry pavement. There were a couple instances on fairly rough gravel where I could feel the rocks, but I don’t think that’s a concern - both because few race courses cover that terrain, but also because nearly any road shoe will feel the same (or worse!).


After a lot of theory about stride and cadence style runners, I would like to report how the new ASICS Metaspeed Sky+ feels on the run. Since the shoe was waiting for me at home when I came back from vacation on a Saturday, I of course did exactly what a runner should not do: I ran a race in the Metaspeed Sky+ on Sunday morning - “Out of the box” - without any break-in-time.

Admittedly, the Würzburg half marathon was not an A race for me. I registered spontaneously because my brother-in-law started the first half marathon of his life there (he did great with a 1:40!). Just two weeks after the Copenhagen Marathon and coming straight from an alpine hiking holiday, my legs were very, very tired from the start. Fully aware of this, I started the first few kilometers at my PB pace (approx. 3:40min/km) - I wanted to test the new shoe properly. 

And can I say? At that half marathon pace, the ASICS Metaspeed Sky+ was a blast! It went so fast that, despite the not exactly fast route and windy conditions, I actually hoped for a new PB up to about halfway. Support, lockdown and stability of the shoe never left anything to be desired, even in winding sections and sometimes on cobblestones. Above all, the stability has improved compared to the predecessor thanks to the wider forefoot and the firmer heel cap. The aforementioned bounce in the forefoot was also very noticeable, provided propulsion and made me want to go faster.

Unfortunately, the battery in my legs was really empty about halfway through - anything different would have been a surprise to be honest. That's why I wasn't too annoyed.  Instead I shifted down a gear and finished the second half at about my marathon pace (4:00min/km). Therefore, the second half was no longer about getting the most out of it, but about having fun with my fellow runners and the spectators. 

During that second half I found that the ASICS Metaspeed Sky+ was  excellent at cruising somewhere between marathon and half-marathon pace. At the end it still was a reasonable performance at 1:23 and a very positive first run in the Metaspeed Sky+.

In the meantime, I was able to do a few more runs in Sky+ and also make a direct comparison with the predecessor. Here are a few more insights:

The first thing that became obvious to me was that the ASICS Metaspeed Sky+ has two “sweet spots” in terms of pace for me. The first one is cruising between half marathon and marathon pace as just described. With my current training level and my forefoot to midfoot stride, this means about 3:40min to 4 min per kilometer. At this effort, the bounce of the forefoot, which is explicitly designed for it, can be felt most clearly and the comparison to the Nike Alphafly with its airpods placed in the forefoot is obvious. My later long run test showed, in line with this comparison, that the Sky+ now works better at slightly slower speeds, similar to the Alphafly.

The second sweet spot for me is where I can hardly run any faster. At a speed I would go in competitions of 5km or shorter (about 3:20min/km or faster). At this speed I explicitly run through the forefoot and the steep angle of the forefoot rocker fully comes to life. The Metaspeed Sky+ is a lot of fun at these all out paces - under these conditions, the shoe and I fit together perfectly.

Unfortunately, where we don't go well together is exactly between these two best sides of the pace spectrum. What I would call 10km competition speed (about 3:30min/km) feels kinda wrong in Sky+. As if I would like to run more on the forefoot, but the shoe does not allow it. Or to put it another way: As if I was “standing too far back in the shoe” and this almost caused a negative drop. I can't explain exactly why that is, but of course I want to share this observation with you. I can only assume that in one sweet spot I tend to run on the midfoot, in the other purely on the forefoot. And the dead point then comes into play somewhere right in between, where shoe and body somehow have different opinions on the correct running style.

In a direct comparison with last year's Metaspeed Sky, I was able to determine that Sky 1 doesn't give me this on/off feeling, but works equally well for me at all speeds. However, the bounce and propulsion are a little less pronounced than in the Sky+ at both the fast and the slower end of my competition-pace spectrum.

The changed placement of the carbon plate is just as noticeable. The Metaspeed Sky+ feels firmer than its predecessor despite more cushioning foam under the forefoot. This is because the plate has moved up toward the foot, meaning there is now less foam between the foot and the plate. I didn't even notice that without a direct comparison. With one of each Metaspeed versions on each foot, however, the difference was striking and, to be honest, a little more comfortable in the original Sky..

On the other hand, the Sky+ can clearly score in terms of upper comfort. Everything is a little softer and more comfortable, which leans it in the direction of the long-distance cruiser for half or full marathon distances as well. This said, the more robust material of the first Metaspeed Sky 1 can be lashed down a little better, which gives me a little more confidence to really step on the gas at shorter distances.

Renee: Totally agree with Nils here. The Sky+ is a great shoe and is in my opinion a “must-have” for marathon runners. Sure, I might run faster in the Next%, especially for shorter distances, but the Sky+ works well with my cadence and strides. The response forward from a forefoot/midfoot strike is controlled and fast. The turnover is quick and healthy, and I never feel as if I’m overpronating, which admittedly is an issue for me in higher drop plated shoes when I’m not in good enough shape to maintain a race/fast pace. 

Sally: Again, I have to echo Nils’ fantastic and thorough analysis of the ride of this shoe. I definitely think we will see the Metapseed Sky + on many more feet toeing the line at upcoming marathons, as it is a comfortable, light, quick shoe that makes you want to pick up the pace and lengthen your stride. 

I put them through the test on my second run (not right out of the box, like Nils) and raced them in a local 5K, and was admittedly pleased with my performance. And of course I received many compliments on my flashy shoes… Clearly they work with my cadence and my stride. As I have said, I have done all my recent marathons in the Vaporfly Next %2, and have run a series of PBs (interesting to note that my times are faster as I age, and I am now approaching 63, yikes), but I have not run in the Alphafly or the Metaspeed Edge. Based on how much I enjoy the Metaspeed Sky + and its bounce, I am very curious to try the Alphafly 2 to see the difference. I do have the London Marathon coming up…

Michael: Much of this I covered in the midsole section, but speaking directly to the ride: it’s great. There’s a great blend of pop and feedback here; you’re not super detached from the road (as you are in, as mentioned, the RC Elite 2), but you’re also not hitting the pavement as you would be in an old Nike Streak or even the ASICS Metaracer. The plate is evident at pace (and mildly uncomfortable at a shuffle) but doesn’t stiffen the shoe enough to call it “stiff.” Really, I think this shoe is straight down the middle in a lot of these categories that really works.

Conclusions and Recommendations

Now that I've described the innovations on the one hand and my personal experiences with the ASICS Metaspeed Sky+ on the other, the question ultimately remains: Has ASICS been able to further improve my favorite shoe of last year? Or have they turned in the wrong direction? Luckily I can deny the latter. The Metaspeed Sky+ is by no means bad - quite the opposite. Just like its predecessor, it's one of the best options long-distance runners can put on their feet for the half or full marathon distance. 

FlyteFoam Turbo is still one of two S-Tier cushioning materials. The energy return of the Metaspeed Sky+ is therefore still outstanding and has even been improved a little by the changed sole geometry. The slightly improved bounce delivers more fun on the run as well. 

The outsole is still as good as last year and one of the best on the market. The highly breathable upper has become a bit more comfortable - a quality that should not be ignored for the marathon. 

For shorter distances of 5-10km I would probably have to toss a coin between Metaspeed Sky 1 and 2 (or +). But for the long hauls ASICS has achieved its goal and made an already outstanding shoe even better. The question that each of you still need to discuss with yourself and the running shoe retailer of your choice: Which one is the right shoe for you - the Sky+ or the Edge+? ASICS spoils runners with choices, because I'm sure that the Edge+ is in no way inferior to its twin.

Nils’ Score 9.53/10

Ride: 9.5 (50%) Fit: 9.5 (30%) Value: 9.5 (15%) Style: 10 (5%)

There are small deductions for the dead point on my personal pace scale, for a little too much upper material in the forefoot and because some other manufacturers manage to offer their competition shoes for a little less. I have nothing more to complain about with the ASICS Metaspeed Sky+.

Renee: I’m still not sure how the “stride or cadence” design elements factor into each runner’s preferences. ASICS is not the only company to provide design features to best compliment the “stride or cadence” element of running. 

I’m a high cadence runner, but prefer lower drop shoes to maintain even/tempo paces. The Sky+ is a shoe that works really well for me at slow to marathon paces. I have no glaring negatives about the shoe, and for me, the Sky+ is right up there with the Next%. For shorter distances or speed training, I’d prefer a higher drop shoe with a tighter upper fit (i.e. the Next%), but I would choose the Sky+ for a marathon distance when I wanted to pace myself smartly. For anything more than a marathon, the Sky+ is my choice too. If I had to find a negative of the Sky+, I would say it won’t work as well for me as a trainer for speed days or half marathon paces as compared to other shoes, but that’s not necessarily its purpose. Sky+ is a total win. 

Renee’s score: 9.8/10  (-.20 limited to marathon paces/distances) 

Sally: I have had the pleasure of testing many of the top brands’ recent super shoes, and I must say ASICS has a winner here. This update on a favorite shoe from last year makes a great race shoe even better. 

It is definitely more comfortable with the softer upper and TTS longer length and higher more spacious toebox, and it has an even more exaggerated bounce with the repositioned carbon plate and added forefoot foam. The switch to unisex sizing maked my pair not lighter but actually a bit heavier, but the additional weight is not noticeable. 

The broader midsole is noticeable and adds more stability to the high stack. I will continue to test this shoe at various distances, but I can confidently report that I have been pleasantly surprised by my paces during my usual 8-10 mile training runs - they feel faster than the expended energy would indicate. Next up will be some long runs to help determine whether I should wear this shoe for my next marathon in London on October 2. All in all, a real winner! 

Sally’s score: 9.8/10.0

Ride: 9.8 (50%) Fit: 9.8 (30%) Value: 9.5 (15%) Style: 10 (5%)

Michael: ASICS surprised many of us with how strong its initial next-gen shoe offerings were - the Metaracer was great, and then subsequent Edge and Sky options were (in my personal opinion) in the top-tier of racers at their induction. There haven’t been any major moves in that time - Nike’s AlphaFly 2 looks to be more of the (very good) same, and Skechers Speed Freek was a good, but not amazing, offering - so I think it’s safe to say that the Metaspeed Sky+ is amongst the top 3 or 4 racers offered now. Of course, every shoe fits different (and with racing, you want to get it right!), but I think ASICS is really on to something with this line.

And, with a commitment to race in New Balances this year, the Metaspeed Sky+ might just because the best trainer I’ve ever had…. 

Michael’s Score: 9.6/10


ASICS Metaspeed Sky+ vs. ASICS Metaspeed Sky (RTR Multi Tester Review)

Niles: This comparison ran through the entire review, so please read above. In short: More bounce and comfort with Sky+. Both shoes US 10.5.

Renee: I wore a women’s size 8 in the Sky and a unisex/men’s size 6.5 in the Sky+. The only negative I had with the Sky was the short/shallow toebox. My men’s 6.5 has a slight amount more room in the toebox as compared to the women’s 8 in the original version. The rides are comparable. With the additional stack and lower placement of the plate, the Sky+ works best for me at 20+ miles. The original version might work better for a variety of distances (i.e. shorter races/runs). If a runner can find the right size, saving money on the first version makes sense, although I prefer the changes made in the Sky+. 

Michael: I liked the fit on the original Sky slightly more (less wrinkly, and a tad more of a snug fit to my foot), but ultimately, the Sky+ is nearly as good or better in every category. I agree with Renee’s assessment that a savvy shopper could be absolutely pleased in the original, but I prefer the plus.

Sally: I likewise had the W8, my usual size, in the Sky, but the unisex/mens size 7.0 in the Sky +. The original in the W8 was definitely too short and low in the toe box for me, and hampered an honest appraisal of the performance of the shoe. I should have tested the W8.5. Anyways, the Sky + looks much wider and broader underfoot, and weighs slightly more, but the improved comfort was totally worth it. I also found the Sky + to be bouncier than the original.

ASICS Metaspeed Sky+ vs Puma FAST-R Nitro Elite (RTR Mulit Tester Review)

Nils: Both shoes have outstanding upper materials that can hardly be topped in terms of breathability and weight. However, the FAST-R is even more secure on the foot and is even more comfortable. 

In terms of efficiency, the Metaspeed with its 5mm drop appeals to me a bit more - it just fits my running style perfectly. But the FAST-R is very close despite less bounce. Both shoes are about the same price, but the Metaspeed weighs a good 25 grams less. If you look at every gram and also tend to like a lower drop, choose the ASICS. If you prefer a higher drop, just want a comfortable (super) shoe on your foot, or if you want to run technically demanding routes, choose the Puma. Both shoes are US 10.5.

Renee: I agree with Nils that the FAST-R has a more secure upper, although I find the Sky+ more comfortable overall. I wore a women’s size 8 in the FAST-R and a men’s size 6.5 in the Sky+. Length is comparable. Runners who like a tight/secure racer might prefer the fit of the FAST-R while wide-footed runners might prefer the Sky+. 

I find the Sky+ to be more “slow runner” friendly because the FAST-R requires a fast turnover from the mid/forefoot to experience the plate. As Nils stated, the FAST-R is slightly heavier, which is felt when running at moderate paces. The outsole of the FAST-R is superior (PUMAGrip is tough to beat!) although the Sky+ provides a good amount of coverage too. 

ASICS Metaspeed Sky+ vs. Nike Alphafly 1(RTR English Review)

Nils: It took me a long time to put my feet in the Alphafly for the first time. But when there were no more Metaspeeds to order anywhere in winter, I found an alternative that was at least as good, if not even better. 


Both shoes use great breathable uppers with good support for the longest efforts. 


However, when things get a little twistier on course, the Sky+ has slight advantages. When it comes to the outsole, ASICSGRIP is clearly ahead. But no other shoe offers as much bounce and fun as the Alphafly. The Metaspeed Sky+ is the only shoe that can keep up for me in terms of efficiency. 

But despite the improved bounce in the forefoot of the Sky+, the trampoline effect of the Alphafly is simply even more blatant. Both shoes are very stable against overpronation. Both are very similar shoes. For the half and full marathon I would probably opt for the Alphafly. But the shorter the race, the Sky+ is ahead. Both US 10.5.


ASICS Metaspeed Sky+ vs. adidas Adizero Adios Pro 2 (RTR Multi Tester Review)

Nils: Both shoes have outstanding upper materials that can hardly be topped in terms of breathability and weight. And while the Adios was still the more comfortable shoe compared to its predecessor, ASICS has caught up with the Sky+ on that front. 

The midsole of the Metaspeed with its 5mm drop suits my running style better and feels more efficient for me. Metaspeed is more about forefoot bounce, adidas is about fast transitions. That's why the Metaspeed is the better shoe for me personally. In addition, it weighs almost 25 grams less in my size, but also costs 30€ more! 

If you look at every gram and also tend to like a lower drop, choose the ASICS. If you prefer a higher drop and faster transitions, choose the adidas. adidas US 10, ASICS US 10.5.

Michael: Despite similar stacks, the Adios Pro 2 midsole feels like what the Sky+ has… and then some! They’re comparably dense materials, but I just feel like there is so much pop out of the Adidas. Even so, the benefit to the Metaspeed is that it feels less out of control when you’re running, and would be a no-brainer against the Adidas for anything 10K and under (especially if a twisty course).

ASICS Metaspeed Sky+ vs. Saucony Endorphin Pro 2 (RTR Multi Tester Review)

Nils: The Endorphin Pro 2 is more stable compared to the ASICS, runs firmer and is not quite as energetic. The EP2 makes more use of its rocker geometry - it's all about fast roll-off, not trampoline-like catapulting as in the Sky+. The EP2 is slightly ahead in terms of support but mainly fits narrower feet. The outsole of the ASICS is way better. The Saucony should work better for heel strikers than the ASICS. But for me, the Sky+ simply feels better on my feet: it's not as rough on muscles and tendons, it's almost as stable and somehow more efficient. Both US 10.5.

Michael: The Saucony is a firm, stable, don’t-call-it-harsh ride; I’ve actually gotten more miles out of my Endorphin Pro+ in the recent past (which is functionally the same as the Pro 2, with a modified upper), but I can’t say my legs feel great after hard efforts. If you plan to use these regularly (more than once a week), and can’t decide, I’d get the ASICS just for leg-preservation. If you’re looking for a top-end racing to use sparsely… it’s a toss up.

ASICS Metaspeed Sky+ vs. Nike Vaporflly Next% (RTR English Review)

Nils: The Nike Next% is the benchmark for any race shoe with a carbon fiber plate. But not only can the Metaspeed Sky+ keep up, it actually works better for stride style runners like me! 

The Vaporfly is softer and provides faster transitions with its higher drop and earlier rocker. However, it cannot quite keep up with the Sky+ when it comes to “bounce”. The Sky+ also has a better outsole. But basically this comparison is about the runner type question raised by ASICS. Sky+ for stride style runners, Vaporfly for cadence style runners (or the Edge+!. I personally get along better with the geometry of the ASICS, which is why I would choose it in this comparison. Both 44.5 EUR.

Renee: Nils is right. The Next% still serves as a benchmark for carbon-plated runners, but the Sky+ is very comparable and I might choose the Sky+ over the Next%, depending on my training. The Next% works better for a variety of racing distances, from 5k to marathon. Because of the drop, stack, and placement of the carbon plate, the Sky+ works better for me only at longer distances. 

Sally:  I never really thought about what “type” of runner I was - stride vs cadence - until ASICS came out with the Metaspeed Sky and Edge last year. To be honest, I don't really know what type of runner I am! All my recent successful races have been in the Next%, from 5K to 10K to Half Marathon to Marathon, but only because I tried on the Alphafly once and found it unstable and “weird” feeling under the arch. The Metaspeed Sky + gives runners a legit option! Stay tuned for my London shoe choice.

New Balance FuelCell RC Elite 2 (RTR Review

Sally: I was and still am a huge fan of the NB RC Elite 2. It is a comfortable, well-cushioned, fast, fun, smooth, great looking ego-boosting shoe that seems to do it all. The Metaspeed Sky + is similar in feel, perhaps more race day oriented for me than the RC Elite 2, which I favored for long training runs. Two great carbon-plated shoes that give the “anti-Nike” runners great options!

Michael: As noted above, I’m on a Fleet Feet-sponsored racing team, and I have only raced in the RC Elite 2 or the SC Pacer in the past 24 months or so. That said, I think there are pros and cons to each here. The New Balance is bouncy (like, really bouncy) and undoubtedly propels you upwards. It’s also the racing shoe that generates the least leg fatigue after a hard effort (even better than the Adidas). But, I find the RC Elite 2 a little too soft, especially for things faster than marathon pace. If you’re only looking for a marathon shoe, I do think the NB is a great one… but if you’re looking more for half-marathon, I’d look to the ASICS.

New Balance FuelCell Supercomp Pacer  (RTR Review)

Michael The SC Pacer is (intentionally) a much more minimized racer, with a lower stack and a more aggressive forward lean. That shows - my legs were trashed after a hard half-marathon this spring, and I actually picked the RC Elite 2 over them on a hilly 10-mile (and didn’t regret it, though the race ended up being not particularly competitive, so I didn’t run that hard). For 5K/10K racing, I do prefer the aggressive Pacer platform. But if you’re looking for 10 mile, HM, or marathon racing, I’d definitely buy the ASICS here.

Altra Vanish Carbon (RTR Review)

Renee: The Vanish Carbon is a zero drop shoe but the geometry of the midsole makes the ride feel like a low (not zero) drop. The Vanish Carbon is slightly heavier in my womens’ size 8 as compared to my unisex size 6.5 in the Sky+. Length is comparable, with more room/width in the Altra. The upper of the Vanish Carbon had some issues for me (tongue sliding/heel hold). Both shoes have a generous fit, although wide footers runners might prefer the Vanish Carbon. For slower paces and more comfort underfoot, the Vanish Carbon works better (although the upper needs some work). For racing, the Sky+ is superior. 

Please Watch RTR Editor Sam's Initial Video Review of the Metaspeed Edge+ (14:27)

Tested samples were provided at no charge for review purposes. RoadTrail Run has affiliate partnerships and may earn commission on products purchased through affiliate links in this article. These partnerships do not influence our editorial content. The opinions herein are entirely the authors'

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1 comment:

sortie said...

Since the metaspeed sky + is still Asics toptier racer, it would be great to update to comparisons to other newer racers like adios pro 3, VF3, saucony endorphin pro 3 etc.