Official pictures, tech specs, and shopping information for the new Arc’teryx Vertex Speed mountain running shoes.

Hand over the Pulitzer, folks—according to our bone-dry correspondents, the brand's impenetrable shell layers have landed in the last place you'd expect to see 'em.

If you answered yes to either of these questions, the brand new Arc’teryx Vertex Speed shoe might be for you. The Vertex Speed merges the worlds of mountain running and climbing. New for spring ...