Upgraded heating elements generating heat from the abdomen and back to make you feel warm in 360 degrees. 3-gear heating settings, made of soft skin-friendly material which ensures smooth and comfortable feeling. Note: Shipping without battery or powerbank. Features: Three levels of temperature can be adjusted, and there are also 2 buttons to adjust the heating area according to needs. And the button light can be turned off. USB interface, convenient in use and longer service time. Quick and uniform heating. Unplug the power to machine wash. Internal carbon fiber heating wire, can be rubbed and kneaded for easier cleaning. Made of fine quality material, comfortable to wear and wear-resistant in use. Warm and constant temperature, safer and low voltage. Specifications: Material: Nylon、Polyester、Cotton Fabric: Nylon Lining: Polyester Filling: Down Cotton Color: black Size: S, M, L, XL, 2XL, 3XL (optional) S: Length: 71cm; Bust: 120cm; Shoulder: 46.8cm M: Length: 73cm; Bust: 124cm; Shoulder:48 cm L: Length: 75cm; Bust: 128cm; Shoulder: 49.2cm XL: Length: 77cm; Bust: 132cm; Shoulder:50.4 cm 2XL: Length: 79cm; Bust: 136cm; Shoulder: 51.6cm 3XL: Length: 81cm; Bust: 140cm; Shoulder: 52.8cm Package size: 550 * 300 * 30mm / 21.7 * 11.8 * 1.2in Package weight: 683g / 1.5lb Package List: 1 * Heating Vest