Reflectivity
Silver has an Infrared (IR) Reflectivity rating of greater than 95%,the highest of any element. In other words, 95% of the radiative energy that contacts silver will be reflected back to its source. As a result, X-static minimizes radiative heat loss by actively reflecting the body’s energy back to the skin.
Emissivity: Silver has one of the lowest emissivity ratings of any element, which means that it radiates thermal energy very slowly. Silver will remain warm for a very long period of time. With X-static apparel designed for cold weather, any heat not reflected back to the body by the fiber will be absorbed and stored in the fiber for an extended period of time. As a result, the X-static product will keep the wearer warmer longer than a passive fiber system.