Our Incrediwear socks and braces started way back being made with bamboo charcoal infused threads to release anions when warmed by your body and create a reaction with the bodies positive ions which stimulates the cells and increases blood flow. Incrediwear's Germanium infused braces have only gotten better with new braces for knees, shoulder, hip and legs. Increased blood flow enhances oxygenation to cells, bringing faster healing and less pain. Better blood flow also speeds away heat so swelling is reduced. BUT, better blood flow also means cold feet and hands are improved as cooler blood is whisked out faster with warmer blood.