Description: The intelligent vest boasts many advantages. For example, it has 3 gears heating, 45℃, 55℃ and 65℃. And it is also easy to charge just like how you charge your phone. Besides, it has multi areas heating so it can give you warmth roundly. The smart vest is energy-saving, safe and long-lasting so you won't regret for buying it. And having it you can have much fun at outdoor, you can wear it for skiing, skating and camping. Made of high quality of polyester, this vest is great, warm and comfortable to wear. There are 6 sizes for your choice, S, M, L, XL, 2XL, 3XL. It is great for outdoor and outdoor activities like skiing, skating and camping. Item Name: Vest Material: Polyester Style: Casual Gender: Men Season: Winter Length: Regular Size Type: Slim Neck: V Neck Sleeve: Sleeveless Power Supply: Power Bank (Not Included) Heating Areas: 5 Areas Heat Features: Adjustable Temperature, Smart Heating, Energy-saving Size Details: Size: S, Bust: 90cm/35.4", Shoulder: 34cm/13.4", Length: 58cm/22.8" (Approx.) Size: M, Bust: 94cm/37", Shoulder: 36cm/14.2", Length: 60cm/23.6" (Approx.) Size: L, Bust: 98cm/38.6", Shoulder: 38cm/15", Length: 62cm/24.4" (Approx.) Size: XL, Bust: 102cm/40.2", Shoulder: 41cm/16.1", Length: 64cm/25.2" (Approx.) Size: 2XL, Bust: 106cm/41.7", Shoulder: 43cm/16.9", Length: 66cm/26" (Approx.) Size: 3XL, Bust: 110cm/43.3", Shoulder: 45cm/17.7", Length: 68cm/26.8" (Approx.) Notes: 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 (USB Cable is Included) 1 x English Instruction Book