This is the Sherwood Tiffany Blue Elite Scuba Diving Snorkeling Fin Adjustable Open Heel Fins - Tiffany Blue Collection Features: Lightweight, high performance dual-composite fin blade Features full-length power rails Central flex channel Open heel foot pocket is held comfortable and secure with a unique, highly stretchable silicone heel strap Lightweight, high performance dual-composite fin blade featuring full-length power rails and a central flex channel. Open heel foot pocket is held comfortable and secure with Sherwood&';s unique, highly stretchable silicone heel strap. The NEW ELITE fin from Sherwood is the elite choice for power and performance.