From the top, they look like your classic beach flip-flops. Underneath, theyre engineered with our iQushion midsole tech. Made of high-rebound air-foam for non-stop cushioning, with heel and ball-of-foot impact pillows, and a contoured arch-curve for natural support when you walk. On top, beach-friendly, subtly textured rubber straps. Brilliant for the beach, pool, spa, or padding around at home (try yours with socks).Specifications:- Upper Material: TPUTechnology:Iqushion™:- Ultra-light, supersleek cushioning that's ergonomically shaped for all-day comfort.- Made of ultra-light.– Flexible air-foam cushioning.- Anatomically shaped footbed, with built-in arch contour that hugs your feet.