When you need the most warmth, a heated base layer is the answer. Not only are the heating panels close to your skin, wearing another layer, such as a regular shirt, vest or jacket, over the base layer traps the heat, so you stay warmer longer. The GERBING 7-Volt Base Layer Shirt is the ideal battery heated top for your winter weather activities. Now you can enjoy hours of tailgating, hunting, sports, working in cold environments or just lounging around the house with the addition of the GERBING Heated Base Layer to your wardrobe. The comfortable, stretchy and soft fabric easily moves with you while the gentle heat on your chest and back soothes you for hours. Easily change the heat settings with the tap of a button. It couldn't be simpler. The GERBING 7-Volt Battery Heated Base Layer Shirt will be your next essential winter garment. Size: Small. Color: Black. Gender: male. Age Group: adult.