Mid-cut design hugs your feet, and GORE-TEX waterproof/breathable membranes protect them from the elements Anatomic decoupling technology features distinctive grooves and independent platforms designed to cushion, guide and propel your feet a smooth forward transition Lightweight and responsive Energy Surge foam is created by combining EVA and olefin block copolymers (OBC) to deliver long-lasting cushion and bouncy energy return All Terrain Contagrip® outsole material is built for the widest variety of surfaces, delivering durability and confidence on wet, dry, hard or loose surfaces Uppers contain 31% recycled material