All leather BOULDER X's are best for alpine rock approaches, hiking to your favorite bouldering area or scrambling up easy 5th class climbs, then cruising the descent. Climbing shoe inspired - BOULDER X's are roomy in the toe box and fitted with a full suspension micro porous EVA midsole and 2 mm polypropylene shank for on-and-off trail comfort. When it's time to climb - tighten the trick MYTHOS lacing system to both lock your heel in and also drive your foot forward - increasing technical performance and security. Nice touches include the mesh collar to keep grit out, self centering tongue and the Vibram Idro-Grip V-Smear sole - w/ Impact Brake System - for top traction up or down. Delivered anywhere in North America.