Under Armour ColdGear Infrared EVO Crew - Women39;s 7.2 oz. 87% polyester/13% elastane fabric. EVO ColdGear fabric for warmth and moisture management. ColdGear Infrared printed interior uses a soft, thermo-conductive inner coating to absorb and retain your own body heat. Quick dry for superior moisture transport to keep you cool, dry and comfortable. Lightweight, 4-way stretch construction improves mobility and maintains shape.