The Under Armour Women's ColdGear Reactor Vest is a popular choice among women who want a sleeveless lightweight vest for their activewear collection. Made from a blend of polyester and elastane, this vest is not only lightweight but also breathable and stretchy. It features a full zip closure and two zippered hand pockets for added convenience. The ColdGear Reactor technology adapts to your activity level, providing the right amount of warmth and breathability. The vest also has a slim fit design that flatters the body shape. Whether you're going for a run, hitting the gym, or simply running errands, the Under Armour Women's ColdGear Reactor Vest is a versatile and functional choice.