These fins feature Speedo BioFUSE technology for comfort and improves lower body strength and ankle flexiblility. Speedo BioFUSE is engineered to perform with your body, offering superior comfort through fit. The human body combines the structural strength of the skeleton and the flexibility of muscles. This is the inspiration behind Speedo BioFUSE technology, where products are engineered to perform in harmony with the body. Speedo training aids are designed to help you get the most from your swim workout.
- Made with Speedo BioFUSE technology for maximum comfort and fit
- Engineered to increase speedo through water
- Improves leg strength and ankle flexibility
- Dual density design, offering stiff blade and soft confortable foot pocket