This is the knee brace that fits under clothing and helps relieve pain caused by osteoarthritis. Its unique silicone construction, developed by an orthopedic surgeon, molds to the knee area to support the muscles, reduce impact on the joint, and help reduce anterior knee pain. Unlike traditional hinged or wraparound braces, which are so bulky they must be worn conspicuously around clothes, this discreet, breathable model fits under slacks or a skirt for all-day comfort. During testing at the Hammacher Schlemmer Institute, a consumer panelist described it as “easily the most stable knee brace I have ever worn.” It comes with a machine-washable compression sleeve that may be worn under the brace for additional support. Select left or right knee. For proper sizing, measure knee circumference directly over the patella: M (14"-15"), L (15"-17"), or XL (17"-19"). (13 oz.)