The Under Armour Women's ColdGear Reactor Vest is a popular choice for women seeking a sleeveless waterproof safety thermal activewear vest that offers exceptional warmth and comfort. Made with high-quality materials, this vest is designed to adapt to your body temperature, providing the right amount of warmth when you need it. The vest features ColdGear Reactor insulation, which adjusts to your activity level, keeping you warm without overheating. The water-resistant finish repels light rain and snow, ensuring that you stay dry during your outdoor adventures. The sleeveless design allows for easy layering and freedom of movement. The ColdGear Reactor Vest also has zippered hand pockets and an interior pocket, providing convenient storage for your essentials. With its innovative technology and reliable performance, the Under Armour Women's ColdGear Reactor Vest is a popular choice among active women.