With its simple slip-on design, the Hydrip brings little feet go-anywhere, do-anything energy. Made from a single piece of sturdy yet supportive foam, it features a stretchy heel strap and textured footbed to help hold your little one's foot in place. Benefits Textured footbed helps hold little feet in place. Cutouts in the upper help add ventilation. Elastic heel strap features a 23 logo that looks the same even when flipped over to rest on the upper.