Under Armour Coldgear Armour Stretch Running Legging Armour Stretch fabric - Gives you a ridiculously warm interior and a slick, fast-drying exterior. Closed-hole mesh panels - For added breathability. 4-way stretch fabrication - Allows greater mobility in any direction. Moisture Transport System - Wicks sweat and dries fast. Anti-odor technology - Prevents the growth of odor causing microbes.