Designed to improve your upper body\\\'s fitness, enhancing your speed in the water. Thex Biofuse Power Paddle creates water resistance, making your arms, shoulders and back work harder for improved speed, muscle strength and stroke technique. Power paddles encourage high elbows and proper hand entry into the water, making stroke technique more efficient, which conserves energy - crucial for long distance swimming. The increased surface area of the paddle also means you catch more water, improving your strength and endurance. Features & Benefits - Speedo Biofuse technology unsures maximum comfort and fit - Available in sizes M and L