Article by Jeff Valliere
Arc’Teyrx Vertex Speed ($190)

Introduction:
The Vertex Speed is designed to blur the line between trail running shoe and climbing approach shoe, marrying the key features of each. It has a lightweight build, responsive and dynamic midsole, zoned sticky rubber outsole with well thought out lugs that stick on rock as well as loose technical terrain, a breathable upper with built in gaiter and precision fit with climbing shoe type lacing.
For a fast run in technical terrain, perhaps with a scramble in the mix, where lightweight, dynamic performance and optimum grip are paramount, the Vertex Speed fits the bill.
Pros: Lightweight, sticky rubber outsole with versatile grip, built in stretch mesh gaiter, durability, quality, responsive, secure fit, protection, breathable
Cons: laces come untied easily, upper could be dialed in a bit more