Design: Polyester jacquard webbing upper wraps around the foot and through the midsole for a customized fit Adjustable and durable high-tensile webbing heel risers take pressure off your feet Injection-molded ladder lock buckle In-Shoe Comfort: LUVSEAT(TM) dual-density PU midsole for long lasting comfort and support certified by podiatrists Chaco Cloud cushioning for active comfort for all day comfort Durability & Traction: Non-marking ChacoGrip(TM) rubber compound is optimized for wet traction 3.5mm lug depth