These SPEEDO® Biofuse® fins were specially designed to help you develop your freestyle, backstroke and butterfly techniques. Their short-blade design better balances your kicking tempo with your arm strokes, enabling you to swim faster and have more endurance. The stiff blade material builds lower-body strength as you move in the water, while a soft foot pocket creates a comfortable fit for zero distractions.
A fusion of hard and soft silicone maximizes your comfort and performance
Stiff blade material helps you build power and strength
Short-blade design balances your kicking tempo with your arm stroke
Soft foot pocket
Ideal for developing the proper stroke technique for freestyle, backstroke and butterfly swim strokes