Sizes S(7/8), M(9/10), L(11/12), XL(13/1), 2XL(2/3) and 3XL(4/5)Give those little feet fun and comfort with the Reef A-Maze sandals. Synthetic upper in a casual flip flop sandal style with a round open toe and textile toe thong post. Elasticized heel strap for a comfortable fit (sizes S & M only). Molded polyurethane footbed with arch support. See-through rubber outsole features a cool tilt ball maze!