The Under Armour Women's ColdGear Reactor Vest is a popular choice among women looking for a sleeveless insulated high-visibility packable activewear vest. It is made from high-quality materials and features a modern design. The vest is equipped with ColdGear Reactor insulation, which adapts to your activity level to provide the right amount of warmth. It has a water-resistant finish to keep you dry in light rain or snow. The ColdGear Reactor Vest also has a high-visibility color and reflective details for added safety during outdoor activities. It has a slim fit and is available in various sizes. Whether you're running, cycling, or training, the Under Armour Women's ColdGear Reactor Vest offers both style and functionality.