3. Under Armour Women's ColdGear Reactor Vest

The Under Armour Women's ColdGear Reactor Vest is designed to keep you warm and comfortable during your workouts. It features ColdGear Reactor insulation that adapts to your activity level, providing the right amount of warmth without overheating. The vest is made from a lightweight and breathable fabric that wicks away sweat, keeping you dry and comfortable. With its packable design and stylish look, this vest is perfect for outdoor activities or layering under a jacket on colder days.