FINIS Edge Fins are expertly crafted to improve leg power and kick strength, enhancing both endurance and speed. These fins promote proper kick development by emphasizing the use of hip movement rather than knee movement. Made from high-quality silicone, they conform to the swimmers' feet for a comfortable and practical fit over time. With benefits such as increasing endurance and speed, activating hamstrings and glutes, promoting proper kick technique, and preventing chafing, these fins are a valuable addition to any workout routine.