Arena fins arena powerfin pro ii training fin gold advanced training fins engineered for faster kicks and greater power in the pool. Our pro powerfins are an advanced swimmer tool for developing kick power. Our innovative design has an inclined short blade for maximum forward thrust and frequent kicking. We engineered them for faster kicks and improved control. Customized for each foot, the open heel ensures optimal flexibility, motion and power. Made of pvc-free silicone, take your lower body workout to the next level with this durable training aid. Take your lower body workout to the next level. Inclined short blade open heel design pvc-free silicone foot-specific fit maximum forward thrust 3 key features inclined blade for maximum thrust the short, inclined blade is specifically designed to generate maximum forward thrust with every kick. Its angle promotes a high kick frequency, making it ideal for sprint training and technique drills. You get more propulsion per stroke without sacrificing turnover speed. Open heel, optimal flexibility customised for each foot, the open heel design allows your ankle to move through its full natural range of motion. This freedom of movement translates directly into improved power transfer and more effective kicking mechanics. It also reduces fatigue during longer training sets. Durable pvc-free silicone constructed from 100% silicone, the powerfin pro ii is free from pvc and built to withstand regular pool use. Silicone holds its shape...