Heating Vest 3 Gears Temperature Control USB Electric Vest Jacket Heating Thermal Warm Vest (Black)L Condition: Item Type: Heating Vest Material: Polyurethane SizeBustWaistLengthM48cm / 18.9in45cm / 17.7in58cm / 22.8inL50cm / 19.7in46cm / 18.1in60cm / 23.6inXL52cm / 20.5in47cm / 18.5in62cm / 24.4inXXL54cm / 21.3in48cm / 18.9in64cm / 25.2in3XL56cm / 22in50cm / 19.7in66cm / 26in4XL58cm / 22.8in52cm / 20.5in68cm / 26.8inFeatures: keep warm, USB power supply, intelligent heating, three-gear adjustable and washable 3 Gears temperature control, can be controlled and adjusted arbitrarily. Put the power bank into the vest bag and carry it with you to keep heating anytime and anywhere High temperature red light is constant on, and the temperature is basically stable at 65℃. Middle temperature white light is constant on, and the temperature is basically stable at 55℃. Low temperature blue light is constant on, and the temperature is basically stable at 45℃. The whole body can be washed, disassembly and washing can extend the service life of the clothes, be sure to take out the power bank before washing Intelligent electric heating vest, intelligent temperature control Smart/rechargeable/high-energy/infrared Note: The product does not have a power bank, you can use it with the common power bank by yourself Temperature-regulating/heating/protection against cooling Improve air conditioning and cold Improve Sore shoulders Improve lumbar intervertebral disc Improve gastrointestinal problems Back discomfort, strain of cervical vertebra in shoulders, promote digestion, keep abdomen warmThe discomfort caused by back stiffness and strain, effectively resisting the strain of the lower back caused by wind and cold 1 minute heat away from the cold and keep warm Function: Heat vest to warm cold winter Three - gear adjustment, suitable for cold areas, and people who afraid of cold