GORE-TEX waterproof membrane. Exceptional breathability and waterproof performance combined with a breathable mesh and TPU upper with 100% recycled laces and webbing 100% recycled breathable mesh lining and mesh footbed cover Rock plate for added protection and forefoot and heel cushioning pods for added comfort Super Rebound Compound provides durable shock absorption to help reduce torque and allow for a smooth transition into the midfoot Vibram TC5+ outsole technology gives you confidence with every step from mountain trails to city streets. Made exclusively for Merrell, Vibram TC5+ delivers all-around grip, traction, and durability designed for every day wear.