Crocs Navy Blue Green Monster Slip On Shoes. Boys size 6, ventilation holes on top, pivoting heel straps for a secure fit, Crocs logo on heel straps, footbed, and bottom sole; lightweight, easy on & off, easy to clean, water friendly, flexible, durable Croslite material & molded footbed design, and accommodates Jibbitz brand charms. Some minor wear on the side of the outer pivoting circles as shown in photos. No wear on the bottom soles.