The Under Armour Women's ColdGear Reactor Vest is a popular sleeveless hooded reversible thermal activewear vest that is designed to keep you warm and comfortable in cold weather. Made from high-quality materials, this vest provides excellent insulation and breathability, making it suitable for various outdoor activities. The sleeveless design allows for easy layering, while the hood adds an extra level of protection against the elements. The reversible feature gives you the option to switch up your look, making it a versatile addition to your activewear collection. Whether you're hiking, skiing, or simply running errands, this vest is a reliable choice for all your cold-weather adventures.