Arena fins arena powerfin pro ii training fin plum 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 iis during your session will help improve your underwater phase, letting you control body position and perfect proper leg kick technique. Train harder. Kick faster. Go further. Inclined short blade open heel design 100% silicone pvc free high-frequency kick competitive training 3 key features inclined blade for maximum thrust the sloping blade surface is engineered to deliver maximum forward thrust with every kick. Its short length promotes a high-frequency leg kick that mirrors race-pace effort in training. This design directly translates pool work into faster, more efficient competitive performance. Open heel flexibility the open heel design removes restriction at the ankle, giving you the greatest possible range of motion. This allows a faster upward recovery and a more explosive downward kick, both critical for a powerful underwater phase. Greater ankle flexibility means better technique and less fatigue across long training sets. 100% Silicone, pvc free c...