The Under Armour Women's ColdGear Reactor Vest is a popular choice for women who want a high-performance activewear vest. Made from a blend of polyester and elastane, this vest offers excellent insulation and breathability. It features ColdGear Reactor technology, which adapts to your activity level to provide the right amount of warmth. The vest has a quilted design with a stand-up collar, zippered hand pockets, and a full-zip front closure. Whether you're running, skiing, or engaging in other outdoor activities, this vest will keep you comfortable and protected from the cold.