Stay warm and protected with the Under Armour Women's ColdGear Reactor Vest. This sleeveless hooded windproof lightweight activewear vest is designed to adapt to your body temperature, providing the right amount of warmth without overheating. The ColdGear Reactor insulation traps heat and regulates your body temperature, while the UA Storm technology repels water without sacrificing breathability. The hood is adjustable and removable, allowing for versatile styling options. With its performance-driven features, this vest is perfect for outdoor activities in cold weather.