Never has a calf sleeve made so much of an effect! Fitted with an ergonomic tab called K-protect, this compression apparel reduces vibrations to your knees by 8%! Worn during and after effort, it limits pains and aches, thus delays fatigue and accelerates recovery. Total performance is guaranteed over ultra-long distance races. Over long distances or on steep descents, knees need to be protected against shocks and oscillations. The Tops of the R2V2 - the compression apparel for your calves The K-Protect tab fitted in, does not hinder movement and causes no discomfort. During deep descents at intense speeds, this calf sleeve, allows you to push the limits. Impacts with the ground are damped as this calf sleeve absorbs shocks; muscles do not vibrate performance is better. It protects weakened or injured knees and help overcome over-fatigue. As an anti-fatigue aid, this calf sleeve helps you resist to effort. Lactic acids and toxins are not allowed to build up thanks to the compressive effect. After effort, wearing your R2V2 helps you recover faster and better. Leg swelling is prevented.