The Thermoskins Arthritis Knee Wraps are designed with an adjustable hook and loop closure to allow arthritis sufferers ease of use and compression variation. These therapeutic knee wraps provide support, warmth, and gentle compression to decrease pain due to sprains, arthritis, or general discomfort. Thermoskins Arthritis Knee Wraps are universal to fit both left and right knees. To determine size, measure leg circumference under the kneecap with the knee slightly bent. Clinically tested Thermoskins® Arthritis Knee Wraps provide compression while helping to control arthritis swelling and aiding in the stability of the knee. Thermoskins® supports are made from elasticized fabrics specifically designed to provide even compression and firm support for muscle injury and soreness, with the greatest possible comfort and fit. Thermoskins® stabilize the knee and combine compression with naturally generated body heat for therapeutic relief from soreness and discomfort. Unique to Thermoskins® is Trioxon® - a unique soft material which not only captures and retains your natural body heat, but also, unlike other products, it allows your skin to ventilate and remain comfortably dry. Thermoskins® supports with Trioxon® lining are completely washable and "breathable" to help alleviate excessive perspiration, skin irritations and the unpleasant odor associated with neoprene products. Anatomically shaped supports are very comfortable to wear. Thermoskins out performs other products because the unique Trioxon lining is designed to be soft against the skin. This minimizes skin irritation and perspiration while helping to retain heat. This latex free knee wrap can be machine or hand washed and air-dry. Thermoskins Arthritis Knee Wraps Specifications: Fabric: Trioxon® lining increases skin temperature while wicking moisture away from skin to ventilate. Latex free. Closure: Velcro® closure allows for ease of application. Includes: One knee wrap. Color: Beige. Sizes: X-Small, Small, Medium, Large, X-Large, XX-Large.