Under Armour Girls' ColdGear Infrared Mock 87% Polyester, 13% Elastane Imported ColdGear Infrared front and back panels use a soft, thermo-conductive inner coating to absorb and retain your own body heat Material wicks sweat & dries really fast Lightweight, 4-way stretch construction improves mobility and maintains shape Anti-microbial technology helps fight odors to keep your gear fresher, longer