The Mueller Green Adjustable Elbow Support is designed to help protect and support sore, weak or injured elbows. The soft, non-petroleum based, neoprene blend retains body heat for increased circulation to help relieve pain, promote healing, and to keep elbow flexible. Hydramesh panel provides increased breathability where you need it most. Protected by the AEGIS Microbe Shield, which controls or eliminates odors, unsightly stains and product deterioration caused by the growth of bacteria and microorganisms.