Features:1. Using high-quality fabrics light and comfortable keep you warm all day. Warm vests are a great choice for winter.2. The independent control system allows you to use the heating vest longer. The temperature inside the vest can be adjusted to ensure your safety.3. Three levels of adjustable temperature two button operation will not let your body overheat. You can adjust the heating area according to the weather and body temperature. It will make you feel relaxed and warm in the cold winter.4. Shoulder button design side seam zipper design adjustable suitable for most body types.5. Suitable for various outdoor activities such as hiking running yoga hunting climbing fishing etc. It is a perfect Christmas and New Year gift for friends parents and family.Notice:1.Actual color may be slightly different from the image due to different monitor and light effect2.Please allow 1-3cm deviation due to manual measurement3.Asian size is smaller than eu/us/uk size please compare the detail sizes with yours before purchasing.Description:Material: polyester fabricHeating piece: composite fiber heating *3 piecesPower supply mode: USB universal connectorColour: BlackRated voltage: 5VRated power: 9WSize: As shown (size can be adjusted)includes:1 x Electrothermal Vest