Brand New unopened. The Milwaukee Tool 334B-20L M12 Heated Women's Axis Vest is a black vest made of wind-resistant polyester material. It includes a battery holder for a 12V DC battery and can provide up to 8 hours of heating time. The vest has a zipper front closure and five outside pockets. It is designed for women with a minimum chest size of 38.5 inches and a maximum chest size of 41 inches. The vest is 20.1 inches long, 12.4 inches wide, and 3.1 inches high. It comes with a 1-year manufacturer warranty.