This is the Oceanic Accel Scuba Diving Snorkeling Travel Fin with Stretch Strap Features: Angled blade ensures the best angle of attack for each kicking stroke Side rails and center channel direct thrust behind the diver for maximum propulsion Vents at the base of the blade improve water flow down the length of the blade for greater efficiency High-stretch heel strap is fully adjustable and easy to slip on and off Foot pocket posts also accept standard quick-release buckle fin strap assemblies Streamlined foot pocket design accommodates a wide range of boot styles Textured sole provides traction on boat decks and slick surfaces Compact blade is easy to pack and great for maneuvering in tight spaces The Accel&';s pronounced side rails and center channel direct thrust behind the diver for maximum propulsion. Vents at the base of the blade improve water flow down the length of the blade for greater efficiency. With its excellent water flow characteristics, the Accel allows divers to swim efficiently with multiple kicking styles, from scissor to frog to sculling. Unique, high-stretch strap design dramatically reduces the bulk and drag of typical open heel fins, all while being effortless to slip on and off. The Accel&';s foot pocket posts also accept standard quick-release buckle fin strap assemblies. _x0003_Streamlined foot pocket design accommodates a wide range of boot styles. Underneath, the textured sole provides traction on boat decks and other slick surfaces. The Accel line features a full line of available color kits. The highly durable blade material ensures the Accel will last long after it becomes divers&'; favorite fin. Transform your fin to match your team or to impress a lover.