100% Silicone Imported Swimming Fins for Men and Women: These FINIS swim fins are the perfect swimming accessory for improving your technique and building strength and endurance FINIS Swim Fins: Edge swim flippers are designed to be worn during aerobic and anaerobic training, these fins catch water on the up-kick, activating hamstrings and glutes Swim Gear for All Swimmers: These swim fins activate your hips and quadriceps, enforcing a proper kick that starts at your hips, not your knees High-Quality Swim Flippers: Made of 100% silicone, Edge swim fins mold to your feet over time; check the size chart before purchasing and size up if you are between sizes or have wide feet About FINIS: Our mission is to simplify swimming through innovation, high-quality products, and a commitment to education