Heat vest with several adjustable heating zones on the chest and back. You can choose from three heat levels - low, medium and high. The heat vest is available in black and beige and in sizes S-XL. Features: Up to 8 hours of constant heat with full battery charge. Several heating panels - chest and back. The patented flexible heating membrane is seamlessly integrated between shell and waistband. You control the heat level by pressing a simple button press. Turn off the heat when you feel pleasantly warm. Water repellent durable nylon shell made of recycled material. A thin Dupont Sorona lining retains heat while diverting any moisture.