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UF-21 OPEN HEEL FIN

The UF-21 fins have an advanced multi-flex long blade design, thrust channel technology for superior propulsion and the foot pocket is made with a soft, durable compound designed for comfort. The open-heel design allows for quick and easy size adjustment and the silicone heel strap enhances comfort and durability. This fin is engineered to provide a lot of power for its compact size. The fins are lightweight and ideal for travel.  

TUSA’s industry leading 3 year warranty.


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  • Advanced Multi-Flex long blade design
  • Thrust Channel Technology
  • Maximum propulsion and comfort
  • Soft comfortable open-heel foot pocket with adjustable silicone strap
  • Designed for ease of entry yet secure fit
  • Sizes: S, M, L