Speedo Biofuse Fin
Biofuse Training Fins create maximum resistance in the water. Maximum resistance means more workload on your leg muscles which means increased strength and Endurance®. You'll also be able to go faster through the water as the fins add additional propulsion to your stroke leaving you free to focus on your technique. As the Biofuse Training Fins forces ankle extension during kicking, it helps to develop ankle mobility too for a more propulsive and powerful kick.