Get more from your training with speedo's Biofuse Hand Paddles. Designed to increase the surface area of the water you catch, the hand paddles create water resistance, forcing your upper body to work harder for improved speed, muscle strength and endurance. A go-to for technique sessions, they encourage high elbows and correct hand entry into the water, improving your stroke efficiency so you conserve energy and can swim further. Biofuse Speedo's Biofuse products offer the best fit and comfort and are designed to enhance the body's natural flexibility and strength in water. These products stand for a balance of strength and flexibility, just like the human body that inspires Biofuse products. They work in harmony with the body.