Stay warm and comfortable during your outdoor activities with the Under Armour Women's ColdGear Reactor Vest. This quilted fleece vest is made from a blend of polyester and elastane, providing excellent insulation and flexibility. The ColdGear Reactor technology adapts to your activity level, keeping you warm when you're inactive and cool when you're working up a sweat. With its sleek design and functional features like zippered hand pockets and a stand-up collar, this vest is perfect for all your active pursuits.