The Under Armour Women's ColdGear Reactor Vest is a high-performance activewear vest designed to keep you warm in cold weather. It features UA ColdGear Reactor technology, which adapts to your activity level to provide the right amount of warmth. The vest is made from a lightweight and breathable fabric that wicks away sweat and dries quickly. It also features a full zip front, two zippered hand pockets, and a stand-up collar for added protection. Whether you're skiing, hiking, or running, this vest will keep you comfortable and warm.