Stay warm and comfortable during your workouts with the Under Armour Women's ColdGear Reactor Vest. This vest is designed to adapt to your body temperature, providing the right amount of warmth as you exercise. The ColdGear Reactor technology traps heat and regulates your body temperature, keeping you cozy without overheating. The vest has a slim fit and a full zip closure for easy layering. It features two zippered hand pockets and a chest pocket for storage. Whether you're running, hiking, or doing yoga, this vest will keep you protected from the cold while allowing freedom of movement.