Lightweight silicone construction reduces leg fatigue and improves comfort so you can swim longer with less effort. Adjustable, secure fit holds the fin snugly around the foot to minimize friction and chafing during extended use. Designed for adults and optimized for distance swimming; provides support that helps maintain body position and efficient kicking technique. Versatile for pool workouts, snorkeling trips, and recreational diving — compatible with most adult swimming and snorkeling activities. Enhances propulsion and swimming efficiency without adding bulk, making it easy to transition between surface snorkeling, lap training, and open-water swims. Durable silicone material resists wear from repeated use in saltwater and chlorinated pools. Practical use examples Snorkeling: Comfortable fit and lightweight blades let you explore reefs and shallow wrecks with less leg strain. Swim training: Use for endurance sets and technique drills to reinforce a longer, stronger kick and proper body alignment. Recreational diving or open-water swims: Provides steady propulsion for distance swims and surface travel between dive sites. What you get Adult-sized silicone fins with an adjustable fit that balances comfort and secure performance for extended water sessions.