The Under Armour Women's ColdGear Reactor Vest is a top-rated sleeveless hooded thermal packable activewear vest designed for cold weather conditions. It is made from a blend of polyester and elastane, providing both warmth and flexibility. The ColdGear Reactor technology adapts to your activity level, providing the right amount of warmth and breathability. This vest features a hooded design with a full-zip front and two zippered hand pockets. The lightweight and packable construction make it easy to carry and store. Whether you're skiing, snowboarding, or engaging in other winter activities, this vest will keep you comfortable and protected.