The knee sleeve-economy open Patella provides compression, warmth and support to the knee joint. Constructed of Neoprene for compression and support. Used on mild knee sprains, Chondromalacia, mild patellofemoral Osteoarthritis and Osgood-Schlatter''s disease. United Ortho has provided medical professionals and consumers with affordable, high-quality products for more than 40 years. We design, manufacture, and distribute a broad range of bracing solutions, and commitment to customer satisfaction Is ingrained in our culture. United Ortho guarantees all products to be free from defects in materials and workmanship for a period of six months from date of purchase.