In response to the size problems reported by many customers, we have improved the size of the top. Please refer to the exact size chart above. Heated Vest Winter Men and Women - Fast Heating, Warmth, Durable In cold winter, you don't need to wear heavy sweaters, coats and scarves to keep warm, Bseical thermal jacket is a good choice for you to keep warm in winter, give you enough warmth to keep your body warm in snowy winter. Power Tips (very important: read carefully before buying) Since the garment contains a total of 9 heating zones, the heating function requires current from the power supply. If the current is insufficient, it may cause no heat or power failure. It is recommended that you check whether the current of your mobile power supply is greater than 2.1A before use, If you encounter the situation that the heating zone stops working during use, You can try to connect the 2.1A mobile phone charging plug first, confirm that the heating function of the product is normal, and then connect your mobile power supply (current greater than or equal to 2.1A) Reminder: Please adjust to high temperature when using, and preheat for 15-30 minutes to ensure the ideal heating effect. 9 carbon fiber heating zones: 360?? feel the warmth. This heated vest for men and women has 9 carbon fiber heating pads that generate heat at the collar, back and abdomen to ensure even heat distribution throughout the body. 3 Temperature Levels: Press the LED button to adjust the temperature. With these heated clothes for men and women, you can set the mode at the touch of a button: red (45-50??C) is hot enough, white (35-40??C) and blue are not too hot (25- 30 ??). Details (power bank not included in the picture) USB heating, comfortable fabric, down filling, fast heating. High thermal efficiency, uniform heating, the temperature can reach 40??~50??, and the temperature is controllable. It adopts three-dimensional 3D cutting, which fits the human body better and is suitable for people of different shapes. High-quality materials and thermal effects Can be hand or machine washed Before washing, put the USB data cable into the pocket, and zip the pocket (note: do not expose the USB data cable to the outside of the pocket or forget to zip it), do not squeeze hard after washing, in the sun or in the sun Gently let air dry and the jacket will become fluffy as it dries. Pre-charge and warm-up effect is better Please adjust to high temperature before use, preheat for 15-30 minutes to ensure the heating effect, it contains lightweight waterproof filling, warm and comfortable, gentle on the skin, can help you keep your body warm in winter without wearing heavy winter clothes. 9 heating zones and 3 levels of temperature adjustment There are 9 built-in carbon fiber heating pads in the front and rear, allowing you to feel the warmth of 360??. Press the LED button to adjust the 3 available heat levels. suitable for most environments Product Specifications: Product name: heating vest (this product does not include mobile power) Main fabric composition: polyester fiber (polyester) Thickness: thickened with fleece Product packaging: 1 * Heated Vest (This product does not include power bank) Instructions for use: 1. Take out the USB plug on the jacket and connect the power bank 2. Long press the chest thermostat (LOGO) 3. The red light flashes to indicate high temperature and automatic continuous heating 4. After the red light flashes for 5 minutes, the light will automatically turn white and enter the constant temperature mode 5. Three-speed manual adjustment: red light means high temperature heating 45??C, white light means continuous medium temperature 35??C, blue light means heat preservation 25??C 6. Press and hold the chest controller (LOGO) for 3 seconds, the indicator light goes out, and the vest takes off