The Under Armour Women's ColdGear Reactor Vest is a highly popular sleeveless waterproof activewear vest designed for cold weather conditions. It features UA Storm technology, which repels water without sacrificing breathability. The vest is filled with synthetic insulation that adapts to your activity level, providing the right amount of warmth and breathability. It has a full zip closure and two zippered hand pockets for added convenience. Whether you're skiing, snowboarding, or simply braving the winter chill, this vest is a reliable choice.