| Patented Nature's WingŪ fin technology is the only fin that eliminates ankle fatigue for fitness swimmers, allowing for a full-leg workout that can be sustained over longer periods of time for maximum and efficient aerobic benefit. The unique blade features specially engineered side rails, strategically aligned flex channels, and hydrodynamic stiffening battons that combine to make the Zip Fin the most comfortable and efficient fitness fin on the market.
Aqua Sphere is the premier swimming equipment manufacturer for recreational and fitness swimmers with innovations such as Seal, the original swim mask, Seal Kid, the best-selling children's swim mask, or the Zip split training fin. All Aqua Sphere eyewear and accessories, like the Kaiman goggles or the Seal XP are made of high quality materials and designed with cutting-edge aquatics product technology. Whether swimming in pools or open water, Aqua Sphere has the right swim gear for adults, fitness swimmers, athletes and triathletes, as well as kids, to provide a safe, reliable, and comfortable swim experience.

Features include:
- Eliminates ankle fatigue for an efficient workout
- Easy-adjust buckle system
- Comfortable foot pocket with Soft neoprene ankle strap
- Available in sizes S, M & L
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