Speedo’s own Biofuse technology and using pure silicone, these fins are designed to enhance your body’s natural ability in the water.  Biofuse Fitness Fins add an extra propulsion to the stroke, which increases speed with minimum effort leaving you free to ingrain correct technique. 

• Short fin with enchanced performance and comfortable fit
• Open heel pocket for ankle flexibility
• 100% silicone for maximum comfort and durability
• Strengthen leg muscles
• Increase workout speed
• Correct technique

Biofuse Fins Size Chart

Fins should have a snug fit. If you are in between measurements we recommend sizing down.