Thermoskin Arthritic Elbow Wrap XS-XXL (5161) Exclusive 3 dimensional lining that provides insulation and wicking of moisture via air circulation. This allows the skin to remain well oxygenated and comfortable for extended periods. Promotion of increased blood flow facilitates enhanced recovery Provides light but firm compression to counter act tissue swelling Clinically tested to increase the skin and muscle temperature Provides temporary relief from pain/soreness associated with sports injuries, arthritis and RSI Increases elasticity and reactivity of the muscle Proprioception (support): implies perception of correct body position MATERIAL Outer lining: NylonMid layer: Rubber foamInner lining: Polyester(Does not contain latex). Thermoskin is comprised of:• 56.93% Neoprene• 9.07% Nylon• 34% Polyester