Product name: intelligent heating suit Applicable scene: outdoor sports/daily leisure Collar: stand collar Closure type: zipper Lining material: polyester Material: polyester Clothing style: vest Operating temperature range: about - 5 ℃ to 40 ℃ Waterproof grade (IP): 3 Label:yes Washing Care: Hand or machine washable，Machine wash at temperatures below 30°C Usage: 1: Take out the USB plug 2: Connect the charging bank 3: Press the output switch of the charging bank 4: Press and hold the chest temperature control switch for 2 seconds 5: The red light flashes for automatic temperature control heating 6: After the red light flashes for 5 minutes, the automatic white light changes to Chinese control 7: The manual adjustment is in the third gear. The red light is for continuous high temperature heating, the white light is for continuous medium temperature heating, and the blue light is for continuous low temperature heating. 8: Press the chest temperature control switch for 2 seconds, and turn off the light to stop heating. Washing instructions: take out the charging bank, add neutral detergent, wash by hand, do not rub or beat forcibly, and use the washed clothes after natural ventilation and drying. 3: Precautions: 1: Do not connect the charging bank if it is not used for a long time 2: Do not use high-temperature water or strong acid detergent 3: Do not use electricity when wet. Turn off the power when wet in the rain. 4: The use time depends on the capacity of the charging bank, 5:The charging bank is provided by itself. Size indication: S M L XL 2XL 3XL 4XL S: bust: 102cm, shoulder:39.1cm, length:63cm, M: bust: 106cm, shoulder: 40.3cm, length:65cm, L: bust: 110cm, shoulder: 41.5cm, length:67cm, XL: bust: 114cm, shoulder: 42.7cm, length:69cm, 2XL: bust: 118cm, shoulder: 43.9cm, length:71cm, 3XL: bust: 122cm, shoulder: 45.1cm, length:73cm, 4XL: bust: 126cm, shoulder: 46.3cm, length:75cm, 5XL: bust: 130cm, shoulder: 48.3cm, length:77cm, 6XL: bust: 134cm, shoulder: 50.3cm, length:79cm,