Design: Durable jacquard-woven upper featuring one-of-a-kind Ke Au Camo artwork Drop-In Heel(TM) technology that gives support of a shoe when you need it and the versatility of a sandle when you want to slide-in In-shoe Comfort: Dual-density anatomical PU footbed and gel-cushioned footbed is removable and washable Soft and breathable microfiber footbed cover for extra comfort Durability and Traction: Lightweight EVA midsole with a non-marking "Wet Grip Rubber" outsole, siping and articulating features for added traction on wet surfaces