Material ----- Material ingredient: 100% Polyester, Lining material: 100% Polyester. Heat sheet: Carbon figber, Soft, lightweight, comfortable to wear.Heated Zones ----- One-press button controller can adjust back, neck warmer and belly warmer independently and choose from 3 heat levels in different situations ( High, Medium, Low ).USB port power supply ----- Power is supplied via a USB port using a mobile power source, and Built-in portable source storge pocket, easy to carry.[ NO BATTERY INCLUDED ]Design ----- Stand Collar, its have 2 sides zipper pockets and 2 inner pockets on this vest, Lightweight insulated for you to wear in many ways with unrestricted movement.Vest designed heating system keep you enjoying comfortable warmth in cold days.Occasion ----- Rechargeable heated vest will keep you warm, perfect for outdoor activities like snowmobile, motorcycling, mountain climbing, camping, hiking, skiing, fishing, hunting or office routine and business trip during fall and winter.Instructions:1.Take out USB plug, Plug in removable charger, Switch on the removable charger, press the chest temperature control switch for two second.2.Red light flashing, means heating automatic,After red light flashes for 5 minutes, then automatic turn to white light , means medium temperature red light meas hign-temperature heating.3.Manual adjustment has three level, red light meas hign-temperature heating continuously, green light meas medium heating continuously, blue light meas low heating continuously ,press the chest temperature control switch for two second, lights out and stop heating.Washing instructions:Take out removable charger, Neutral detergent is available, hand wash. do not force knead or beat, After nature air drying can be useNotes :1.If not used for a long time. please do not plug in removable charger2.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.Size Chart:2XL, Bust: 114cm, Shoulder: 43cm, Length: 68cm3XL, Bust: 118cm, Shoulder: 46cm, Length: 69cm4XL, Bust: 126cm, Shoulder: 47cm, Length: 71cm5XL, Bust: 130cm, Shoulder: 49cm, Length: 72cm6XL, Bust: 136cm, Shoulder: 51cm, Length: 74cmNote:1. As different computers display colors differently, the color of the actual item may vary slightly from the above images.2. Please allow 1-3CM differs due to manual measurement.Thanks for your understanding.Package Include: 1 * Unisex Heating Vest