Comfy and versatile, the M12 Cordless Black Heated Hoodie Kit, 3X-Large (2381-3XL) uses advanced technology to both warm the body and stimulate blood circulation. It boasts a durable cotton exterior and waffle-weave polyester lining to withstand tough outdoor conditions while keeping heat close to your body. It also has a one-touch heat control that enables you to adjust the heat to accommodate a variety of weather conditions. Plus, it's machine washable and dryer safe.