This is designed to provide support to stiff, weak or injured knees. Wear during activities which lead to discomfort. Provides light compression, support and therapeutic heat retention to help relieve symptoms associated with minor sprains, strains and arthritis. Anatomical shape for optimal fit. Fits discreetly under clothing. Breathable, dual stretch power knit material for comfort. Comfort panel behind the knee. Fits left or right knee, measure around kneecap while in a standing positon. L/XL 17-22 in (43.2-55.9 cm). Support level 1. Product Benefits. Compression Knee Support.