Description: USB heating design allows kids to heat the vest by connecting a power bank, which is very convenient to use in outdoor. The use of smart thermostat technology maintains comfort. There are 3 temperature modes in the vest to meet your different needs. Moreover, it is stable, safe and reliable. Made of good cotton material, this jacket is very soft, breathable and comfortable to wear. Besides, this cotton padded electric heated vest is washable. Pockets design allows kids to keep hand warm. It is suitable for outdoor, camping, hiking, home, cold weather, etc. Item Name: Vest Material: Cotton Style: Casual Gender: Boys, Girls Size Type: Regular Season: Winter Collar Type: Turndown Collar Sleeve Length: Sleeveless Features: 3 Temperature Modes, Intelligent Thermostat, Cotton Padded Size Details: Size: XS, Bust: 40cm, Clothes Length: 48cm(Approx.) Size: S, Bust: 42cm, Clothes Length: 52cm(Approx.) Size: M, Bust: 44cm, Clothes Length: 56cm(Approx.) Size: L, Bust: 46cm, Clothes Length: 60cm(Approx.) Size: XL, Bust: 48cm, Clothes Length: 64cm(Approx.) Size: 2XL, Bust: 50cm, Clothes Length: 68cm(Approx.) Notes: Recommend using 5V/2A at ensure a good heating effect. Please refer to our size chart and choose the right size. Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Package Includes: 1 x Vest (Power Bank Not Included)