The Rolyan Preferredst AM Wrist Wrap offers temporary relief from arthritis and other aches. It has a three layers. The first layer removes the moisture away from the skin. The second layer retains body warmth. Finally, the third layer insulates everything for soothing purposes. It is engineered with a special anti-microbial treatment to fight the growth of germs that cause odors. That protection lasts the lifetime of the product.