This support features two medial and two lateral spring steel stays and it lends minor ligament support. It helps relieve the symptoms of Chondromalacia, patellar subluxtion and patellar tendinitis. The Long 4 mm thick neoprene sleeve with nylon facing on both sides provides thermal compression. The uniquely styled stitch pattern eliminates all stitching from the sensitive area behind the knee.100 latexfree 4.8 mm neoprene CR exclusive of bindingstrapscover fabricThe knee is bone, ligament, muscle, cartilage and the joint most frequently called on to do the heavy lifting. McDavid thoroughly understand the anatomy of the knee and the anatomy of the athletes mind. They provide confidence and rebuild performance via leading technologies, superior materials and ultimate craftsmanship.McDavid have a special 5needle stitch which creates a stronger, wider, flatter and more durable seam closure on neoprenebased products. It provides a cleaner design and finish to their products. This is an exclusive technique to McDavid.