Made of the highest quality and comfortable materials intended for extended range and depth. Dive Industry appropriate quality and equal to or greater than products found at dive retailers, appropriate for most recreational activities. Soft and comfortable foot pockets. May be worn with or w/out 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.