The Under Armour Women's ColdGear Reactor Vest is a popular choice among women looking for a reflective down activewear vest. This vest is made with a lightweight and water-resistant shell and filled with synthetic down insulation, providing excellent warmth and comfort. The reflective details on the vest enhance visibility in low-light conditions, making it suitable for outdoor activities like running or hiking. The ColdGear Reactor Vest features a slim fit design that is both flattering and allows for easy layering. It also has zippered hand pockets and an internal chest pocket for convenient storage. With its reliable performance and sporty design, the Under Armour Women's ColdGear Reactor Vest is a top choice for women's reflective down activewear.