High Platform EVA Flip-Flop Thong Wedge Sandal Synthetic synthetic-and-fabric Material: EVA, Contoured insole for essential comfort. Lightweight sole with woven nylon straps. Gradual height from a 1 3/4 inch platform midsole rises to an approx. 3 1/4 inch wedge heel. Runs true to size but may be a little smaller than regular, depending on foot.