The Under Armour Women's ColdGear Reactor Vest is a popular choice for women seeking a sleeveless hooded reflective thermal activewear vest. This vest features ColdGear Reactor technology, which adapts to your activity level to provide the right amount of warmth. The reflective details on the vest enhance visibility in low-light conditions, making it suitable for outdoor workouts. The sleeveless design allows for unrestricted movement, while the hood provides additional protection from the elements. Stay comfortable and stylish during your workouts with this top-rated vest from Under Armour.