Hikingworld Unisex Adults Open Heel Scuba Diving Fins, Powerfull Comfortable Flippers Scuba Dive Gear for Size 7-10 Using exclusive and patented SPIDER moulding technology design. More POWERFUL ! The engineering plastic used for the blade has been carefully chosen to meet the needs of Scuba Easy kick, regardless of the user's level of training. Adjustable buckle,fit for SIZE: US 7-10 !! Suitable for snorkeling, swimming and scuba diving