The Under Armour Women's ColdGear Reactor Vest is a popular choice among women who want a sleeveless waterproof activewear vest that offers exceptional warmth and breathability. This vest is made from a combination of polyester and elastane, offering excellent water resistance and stretchability. It features ColdGear Reactor insulation, which adapts to your activity level for the right breathability and warmth. The ColdGear Reactor Vest also has two zippered hand pockets and an internal zippered chest pocket, providing ample storage space for your essentials. With its sleek design and flattering fit, this vest can be worn as a standalone piece or layered under a jacket for added warmth. Whether you're running, skiing, or simply running errands in cold weather, the Under Armour Women's ColdGear Reactor Vest is a versatile and practical choice.