"The Vulkan Classic 3016 Elbow Support comprises of three layers: 1. A protective outer nylon top layer 2. A closed cell neoprene layer that retains heat and provides compression 3. The unique Aerotherm spiral lining that allows air to circulate, drawing perspiration away from the skin to reduce skin irritation and increase comfort. The combination of closed cell neoprene and the Aerotherm lining helps working muscles retain natural body heat and protect against sprains and strains which account for almost two thirds of all injuries. Retaining heat increases local circulation, improving elasticity and the range of pain free movement. Healing is promoted and recovery times shortened enabling you to get back to doing the things you want to do much sooner. ? Ideal for use in sports or occupations where repetitive strain injury may be an issue such as tennis, golf or manual occupations ? Exclusive Aerotherm lining allows the support to retain heat to help speed up the body?s natural healing process, whi"