McDavid Patella Knee Support The McDavid™ Patella Knee Support helps relieve symptoms of chondromalacia, patellar subluxation and tendonitis. 3/16” thick thermal neoprene sleeve provides therapeutic body heat retention and soft tissue support. Padded horseshoe buttress protects and relieves pressure from the patella. Lends minor ligament support with two medial and lateral spring steel stays. Adjustable VELCRO® brand fasteners. Fits right or left knee. Sold individually.