21 Zone Heating Vest Men's USB Infrared Thermal Jacket Smart Heating Clothes New Winter Cold-proof Thick Sleeveless Coat Hiking

Note:The product does not include power banks.You need to use 5V.2A 20000Ah or more power bank.
Hello, the correct way to turn it on is to long press and hold the switch for 3-5 seconds until the light is on before releasing it. After the switch lights up, press the three gears and release them. Different colors have different temperatures. If you have any questions or suggestions, please contact us promptly and we will do our best to help you solve the problem

We are Asian size, 2-3 sizes smaller than European size.
Height: 155-160cm, Weight: 40-50kg, Recommend Size: (EU)XXXS AS(S)

Height: 160-165cm, Weight: 50-60kg, Recommend Size: (EU)XXS AS(M)


Height: 160-165cm, Weight: 60-70kg, Recommend Size: (EU)XS AS(L)


Height: 170-175cm, Weight: 60-70kg, Recommend Size: (EU)S AS(XL)


Height: 175-180cm, Weight: 70-80kg, Recommend Size: (EU)M AS(XXL)


Height: 180-185cm, Weight: 80-85kg,Recommend Size: (EU)L AS(3XL)


Height: 185-195cm, Weight: 85-90kg,Recommend Size: (EU)XL AS(4XL)


Height: 195-200cm, Weight: 90-100kg,Recommend Size: (EU)XXL AS(5XL)


Height: 195-200cm, Weight: 100-110kg,Recommend Size: (EU)3XL AS(6XL)