The LP Support Dual Patella Strap has been designed to offer comfortable & adjustable compression to relieve pain around your knee. The innovative compression system provides optimal compression to reduce the eccentric muscle contraction of the quadriceps tendon that extends to the patellar tendon. Indications that may determine you need this support, include injuries such as Patellar tendinitis, Osgood-Schlatter disease & Jumper's knee Made from 50% neoprene, 30% PE & 20% nylon, LP Support is made form the highest grade closed cell neoprene, covered with stretch nylon on both sides for your comfort. Neoprene is the ultimate material for compression & heat retention, which aids blood circulation.