... made of the highest grade closed cell neoprene, covered with stretch nylon on both sides for your comfort. Neoprene is the ... from strains. sprains, knee joint 2,arthritis or tendinitis. 3,Open patella relieves pressure on the patella. 4,Retains body heat ... fit. Photos for reference: Soft open patella Knee support,Soft open patella knee pad,Soft open patella knee protector, Soft open patella knee guard