The Under Armour ColdGear Reactor Vest is a sleeveless windproof vest that adapts to your body temperature to keep you warm and comfortable. It features ColdGear Reactor insulation, which adjusts to your activity level for optimal warmth. The vest has a slim fit and a water-resistant finish to repel light rain. With its lightweight and breathable design, it is perfect for layering over your favorite activewear during cold weather.
