Stay comfortable and protected during your winter workouts with the Under Armour Women's ColdGear Reactor Vest. This waterproof activewear vest is designed to adapt to your body temperature, providing the right amount of warmth and breathability. The vest features ColdGear Reactor insulation, which adjusts to your activity level to keep you comfortable in any weather. The water-resistant shell repels rain and snow, while the lightweight design allows for easy movement. The vest also has zippered hand pockets to keep your essentials secure. Whether you're running, hiking, or doing outdoor yoga, the Under Armour Women's ColdGear Reactor Vest is a reliable and stylish choice for any active woman this Christmas.