The Under Armour Women's ColdGear Reactor Vest is a popular choice for women seeking a sleeveless insulated waterproof high-visibility activewear vest that offers exceptional warmth and comfort. This vest features ColdGear Reactor insulation, which adapts to your activity level to provide the right amount of warmth. The UA Storm technology repels water without sacrificing breathability, keeping you dry and comfortable in wet conditions. The high-visibility color enhances your visibility during outdoor activities, making it a great choice for running, hiking, and cycling. With its innovative technology and performance-driven design, the Under Armour Women's ColdGear Reactor Vest is a top pick for women who want both functionality and style in their activewear.