Best choice for those who simply want to experience snorkeling in an as economically feasible manner. Soft & comfortable foot pockets available in adjustable open heel. RQL (Ratchet Quick Lock) system utilized on the adjustable open heel. Replaceable fin straps. May be worn with or without additional foot protection. Blades made from carefully selected composites to maximize snap and flex. Combines two different materials to achieve the appropriately desired thrust-to-energy exertion ratio. Suited for both a gentle leisurely swim over a reef or burning calories in a swimming pool lane.