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Aqua Sphere Zip? Fin
Don't let ankle fatigue cut your fitness swimming workout short. The Zip Fin's patented Nature's Wing design virtually eliminates ankle fatigue, allowing swimmers to enjoy longer full-leg workouts. The fin's specially designed split blades twist independently during each stroke, reducing turbulence around the blade. Specially engineered side rails, strategically aligned flex channels, and stiffening battons on each blade ensures proper angle of attack for top lift and thrust. Open heel foot pocket features a soft neoprene ankle strap with an easy-adjust buckle system. Comfortable foot pocket offers open heel/open toe design. Color: Blue/Black. Features: Nature's Wing split blade design eliminates ankle fatigue Lower ankle fatigue makes it easier to extend workouts Split blades twist independently, reducing turbulence around blade Special design ensures proper angle of attack for top lift and thrust Comfortable open heel/open toe foot pocket Soft neoprene ankle straps feature easy-adjust buckle system
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