Blade Angle: Fin blade aligns with the natural angle of the foot, promoting a proper kick Get a Great Swim Workout: Designed for fitness and competitive swimmers of all skill levels to build cardiovascular conditioning Ankle Flexibility: Increases flexibility and range-of-motion for a more efficient swim kick Short Blade: Promotes shorter and faster kicks while generating forward propulsion through the water Improved Foot Pocket: Material formulated with soft natural rubber for increased comfort and a secure fit