Washing: Hand wash cold, Iron at normal temperature <150C, Dry clean, Line dry in the Shade, Do not bleach Label: Yes Material:Polyester Material: Polyester 80%, Cotton 20% Package included: 1 x Men's Vest（without Power Bank) Accents:Zipper Pattern:No Pattern Season:Winter Closure:Zip Size Type:Regular Department:Men Size:S-8XL Type:Vest Sleeve Length:Sleeveless Size Bust Length Shoulder Waist Hip S 102cm 63cm 40cm 103cm 110cm M 106cm 65cm 41cm 107cm 112cm L 110cm 67cm 42cm 111cm 115cm XL 114cm 69cm 43cm 115cm 120cm 2XL 118cm 71cm 44cm 119cm 125cm 3XL 122cm 73cm 45cm 123cm 130cm 4XL 126cm 75cm 46cm 127cm 135cm 5XL 130cm 77cm 47cm 131cm 138cm 6XL 133cm 79cm 48cm 134cm 140cm 7XL 136cm 81cm 49cm 137cm 145cm 8XL 139cm 83cm 50cm 140cm 148cm Features: This is a intelligence vest for you. With mobile power storge pocket, easy travel. 1 minutes fast heat, dispel cold and keep you warm. Set the temperature you want to respond to a variety of environments. A button to heating, three stall temperature control, intelligent heating. It can be washed by machine and can be washed by hand. Do not wring it by hand. General USB interface power supply, longer service life,anti water splashing and washable. The fashion is warm, comfortable and breathable, and it's a good partner for your winter going out. How To Use: 1.Take out USB plug 2.Plug in removable charger 3.Switch on the removable charger 4.Press the chest temperature control switch for two second 5.Red light flashing,means heating automatic 6.After red light flashes for 5 minutes,then automatic turn to white light,means medium temperature 7.Manual adjustment has three level,red light means hign-temperature heating continuously. White light means medium heating continuously,blue light means low heating continuously 8.Press the chest temperature control switch for two second,lights out and stop heating Washing instructions: 1.Take out removable charger. 2.Neutral detergent is available and then hand wash. 3.Do not force knead or beat. 4.After nature air drying can be use. Warm Tips: 1.If not used for a long time,please do not plug in removable charger 2.Do not use high temperature water or strong acid detergent. 3.Forbidden to use electricity for wet clothes,Please turn off the power and stop using if cloth is wet. 4.Use time depending on the capacity of removable charge. Package Included: 1 x Sleeveless Vest (Mobile Power Not Included) Notes: 1.Manual measuring, please allow 1 ~ 3 cm error,thank you.