Sierra Socks Nylon Knee Brace Compression Support Pair (2 Braces) Made in USA 45% Nylon, 28% Spandex, 27% Copper Poly Machine wash, warm with like colors. Non chlorine bleach. Tumble dry low. Helps relieve symptoms of Arthritis such as pain and inflammation. 2 braces. Contoured to fit. Knit w/o binding or slipping while providing support for prolonged use. Knit for proper fit & seamless design for firm, comfortable, even compression. Thin lightweight material fits comfortably with smooth edges for comfortable everyday multi purpose use. MEASURE KNEE CIRCUMFERENCE FOR SIZING. PROUDLY MADE IN THE USA.