Perfect for any activity, The Run Compression Calf Sleeves 4.0 allow you to keep your head in the game. Eliminate fatigue, prevent cramping, and experience lighter, stronger legs thanks to CEP’s supportive medical grade compression that extends from ankle to calf. Smart Dry Extreme Air Technology adapts to weather conditions so that you stay cool and dry in warmer weather, but warm and comfortable in cooler weather.-HEIQ clima-management cools the skin-Recovery begins during activity thanks to accelerated removal of lactic acid-Open structure design improves ventilation for optimal breathability-Reduced muscle vibrations prevents shin splints-Treated with silver to reduce unpleasant odors and eliminate bacteria