Under Armour ColdGear Infrared Crew Running Top - AW15 Elastane^Polyester Imported ColdGear Infrared technology - Uses a soft, thermo-conductive inner coating to absorb and retain your own body heat. Amazingly soft, smooth fabric - Offers total comfort, all day long. 4-way stretch fabrication - Allows greater mobility in any direction. Moisture Transport System - Wicks sweat and dries fast. Anti-odour technology - Prevents the growth of odour-causing microbes.