Finis Edge Fins Swimming Fins for Men and Women - 100% Silicone Swim Fins to Improve Form and Strength - Swim Flippers for Pool Accessories

The Edge fins are designed to improve technique and give your legs a real workout.It takes power to push these fins through the water, which results in building strength and endurance.The side rails on the fin activate your hips and quadriceps – enforcing a proper kick that starts at your hips and not your knees.This motion is great for glute and hamstring development.Made of 100% silicone, Edge fins will mold to your feet over time, like breaking in a new pair of shoes.'