Material:nylon and neoprene Size:S,M,L Durable,waterproof,good elastic OEM is welcome according to your need. Neoprene Knee Pad/Neoprene Knee ProtectorMaterial ... :nylon and neopreneSize:S,M,L as per your requestColor ... ,just email us.We will try our best to help. Neoprene/SBR Knee Protector Support