Reef Layback Flip Flops. An essential REEF sandal for every water-based day. Designed with a lightweight EVA that offers support, the REEF Layback is an easy addition to summer plans and travel packing lists. Water-friendly synthetic strap with woven liner for instant comfort. Soft EVA footbed with inserted arch for comfort and support. Lightweight and durable rubber sponge outsole. Features: Upper: Water friendly synthetic strap with woven liner for instant comfort Footbed: Soft EVA footbed with inserted arch for comfort and support Outsole: Lightweight and durable rubber sponge outsole