The Men's Under Armour ColdGear Baselayer Top provides warmth and comfort during cold weather activities. Made from a blend of polyester and elastane, this Under Armour Baselayer Top is stretchy for mobility and features ColdGear technology to trap and retain body heat better. The mesh back and underarm panels help promote better ventilation, while the dual-layer fabric features a brushed interior for warmth and a smooth exterior for quick drying. When the temperatures start to drop, stay active outdoors in the Men's Under Armour ColdGear Baselayer Top.