This is the leg sleeve that helps provide pain relief and improve recovery via patented infrared infused yarn and targeted compression. It is woven with a thermo-reactive yarn that converts body heat into therapeutic infrared light that is reabsorbed back into the skin, promoting increased blood flow. The sleeve is made with four-way stretch fabric and provides support from the ankle to the thigh. Ideal for wearing under clothing, the sleeve is also breathable, wicks away moisture, and stays secure with built-in silicone gripper. Its thermo-reactive properties will not wear off or diminish over time. Machine wash cold. 85% Polyester/15% Spandex. Unisex sizes S/M, M/L, or L/XL. Includes two sleeves.