Arena fins arena powerfin pro ii training fin white pink the training fin competitive swimmers have been waiting for. The arena powerfin pro ii are the fins all competitive swimmers have been waiting for. Their design features a sloping surface and hydrodynamic blade so that you can swim with a faster leg kick and better control. The open heel ensures the best possible ankle flexibility, allowing faster upward motion together with a more powerful downward leg kick. Training your legs vertically using powerfin pro iis during your session will help improve your underwater phase, letting you control your body position and perfect proper leg kick technique. Built for competitive swimmers. Engineered for every kick. Open heel design 100% silicone pvc free inclined short blade high-frequency kick 3 key features inclined blade for maximum thrust the sloping blade surface is purpose-built to generate maximum forward thrust with every stroke. Its short blade length promotes a high-frequency kick that mirrors your natural racing tempo. This keeps your training directly transferable to competition. Open heel for superior flexibility the open heel design removes any restriction around the ankle, giving you the fullest possible range of motion. This translates into a faster upward kick and a more powerful downward drive through the water. Greater ankle flexibility means better feel, better technique, and better results. Underwater phase development training vertically with the powerfi...