Arena fins arena powerfin pro ii training fin sage lime 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 the powerfin pro ii during your session will help improve your underwater phase, letting you control your body position and perfect proper leg kick technique. Kick faster. Kick stronger. Kick smarter. Open heel design inclined short blade high-frequency kick 100% silicone pvc free competitive training 3 key features inclined blade for maximum thrust the powerfin pro ii features a short, inclined blade engineered specifically for high-frequency kicking. The sloping surface generates maximum forward thrust with every stroke. It is the ideal shape for competitive swimmers focused on refining race-pace leg speed. Open heel flexibility the open heel design gives your ankle the freedom to move through its full range of motion. This allows a faster upward recovery and a more powerful downward kick, closely replicating natural swimming mechanics. Greater ankle flexibility means more productive training with less restriction. Underwater phase development vertical leg kick drills with t...