Latest racing techniques have changed significantly with improved carving skis. It maximizes the curve and flex of the board, creating the ultimate cut and fastest arc. BOOSTER STRAP is the root of the power to create ski flex and is a revolutionary POWER STRAP developed to maximize recovery capabilities. BOOSTER logo belt is strong elastic construction and stretches in 1-way direction. This creates an exceptional fit and locks in power loss. The elastic belt also allows you to move deeper in the knee from the start of turn, making it highly effective at the latest technique in ankle exercises and you will feel the difference you have ever seen before.