The Under Armour Women's ColdGear Reactor Vest is a top-rated sleeveless hooded reversible reflective activewear vest that is designed to keep you warm and comfortable in cold weather. It features ColdGear Reactor insulation, which adapts to your activity level to provide the right amount of warmth. The vest also has a hood with adjustable drawstrings, a full zip closure, and reflective details for enhanced visibility. Made from a blend of polyester and elastane, this vest offers a stretchy and comfortable fit. With its high ratings and positive customer feedback, the Under Armour Women's ColdGear Reactor Vest is a popular choice among women who want a reliable and stylish vest for their outdoor adventures.