Constructed of 86% brushed micro polyester, 14% spandex stretch jersey * Features ec2® Qwik-Dri™ Thermoregulation Comfort Technology: an electrostatic process that allows for moisture movement without the garment touching the skin. * 360° four-way stretch jersey knit construction allows unrestricted movement that won"t stretch out or lose elasticity. * Brushed surface creates additional air-trapping warmth, breathes well, and dries fast to enhance moisture transport. * Anti-microbial treatment for odor control.