Arena fins arena powerfin pro ii training fin blue 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. Customised 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 kick 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 designed specifically for maximum forward thrust during frequent kicking sets. Its angle encourages a higher kick tempo without sacrificing propulsion. This makes it ideal for swimmers looking to build speed and power in their kick cycle. Open heel for optimal flexibility the open heel construction ensures your ankle retains full range of motion throughout every stroke. This freedom of movement translates directly into more natural power transfer and improved kick control. Each fin is customised for the left and right foot to further enhance fit and performance. Durable pvc-free silicone constructed from 100% silicone, these fins are free from pvc and built to withstand regular pool training sessions. Silicone offers a s...