The Under Armour Women's ColdGear Reactor Vest is a performance-driven sleeveless hooded vest. It features ColdGear Reactor insulation, which adapts to your activity level for the right breathability and warmth. The vest is also water-resistant and windproof, making it suitable for various outdoor activities. It features a sleek design with a fitted silhouette and a removable hood. Whether you're running, training, or participating in winter sports, this vest will keep you comfortable and protected.