The Under Armour Women's ColdGear Reactor Vest is a top-rated activewear vest that offers exceptional warmth and comfort. Made with ColdGear Reactor technology, this vest adapts to your activity level to provide the right amount of warmth. It features a lightweight and breathable design, allowing for maximum comfort during outdoor activities. The vest also has a high-visibility design, with reflective details that enhance your visibility in low-light conditions. With its sleeveless design and fitted silhouette, this vest offers a flattering and functional fit. Stay warm and visible with this high-quality activewear vest from Under Armour.