Supports widely used in orthopedic practice to provide mild compression warmth and support to the joint to allay pain and inflammation generally associated with old age arthritis sports etc. Bilayered cotton on the inside : Dermophillic interpahse with the skin better sweat absorption better comfort better patient compliance no allergies or rash. Bilayered nylon on the outside : Ensures long life excellent aesthetics color fastness two layers enclose air space retains body heat effectively provides therapeutic warmth and assuring support to the knee. Four-way stretchable seamless tubular fabric : Effective compression enhanced comfort no vaso constriction adjusts compression even on uneven diameters and simple pull on application improves patient compliance.best for sports use.