Design: Combination durable leather and lightweight textile upper for maximum performance and durability EXO Heel System(R) provides a secure fit with an external heel counter 8mm offset from heel to toe with a slightly wider forefront for stability In-Shoe Comfort: GORE-TEX(R) lining is 100% waterproof and breathable, ensuring that no water get in while sweat and moisture get out Removable OrthoLite(R) footbed with three layers of varying density allows for maximum cushioning as well as better heat dissipation and air circulation Ultra-lightweight PlyoGo(R) midsole provides comfort and optimal weight savings Durability & Traction: Vibram(R) 460 outsole provides long-wearing resilience and incredible grip on wet and dry surfaces Trailguard(R) TPU shank offers stability and protection on rough terrain Additional Details: Weight: 22 oz per pair Height: 4"