Keeps your body dry and comfortable during exercise in cool to cold conditions. The core of our elite layering system, Pro Zero fabric adheres to your body like a second skin. Featuring internal air channel construction, warm body heat is allowed to escape before it turns into sweat, keeping you drier longer. Textured filament yarns stay in contact with your skin and transport any moisture that is produced to the outer layer of the garment, where it is quickly vaporized. Pro Zeros signature fit is achieved through a circular knitting process that allows for most garments to have seamless torsos and a high stretch, nonrestrictive fit.