Remark: Dear friends, the size of the heating vest is suitable for the normal size of Asians, if you are Asian, you can buy it in the normal size, otherwise, it is recommended that you buy one size up according to the current size, thank you Heated Jacket Energy-saving Fleece Lining Fast-Heating Stand Collar Long Battery Life Keep Warm 3 Heating Levels 11 Heating Zones Heated Vest for Daily Description: The vest features fine sewing and excellent craftsmanship, which has the strengths of fast heat generation, tear resistance and high-temperature resistance. This heating vest is a must-have heating device for your winter with its good thermal insulation effect and three-stage temperature conversion. It is constructed of polyester material. There are six sizes to choose from: M, L, XL, XXL, 3XL, 4XL. With this heating vest, you can do outdoor activities in cold weather for better performance, like outdoor work, cycling, fishing, traveling, outdoor sports, outings, etc. Item Name: Heated Vest Material: Polyester Features: Adjustable Temperature, Fast Heating, Energy-saving Specification: Double Control, 11 Heating Zones Operating Temperature Range: About -5 to 40 Degrees Celsius Waterproof Rating (IP): 3 Size Details: Size: M, Length: 66cm/26", Bust: 106cm/41.7", Shoulder: 42.5cm/16.7" (Approx.) Size: L, Length: 68cm/26.8", Bust: 110cm/43.3", Shoulder: 44cm/17.3" (Approx.) Size: XL, Length: 70cm/27.6", Bust: 114cm/44.9", Shoulder: 45.5cm/17.9" (Approx.) Size: 2XL, Length: 72cm/28.3", Bust: 118cm/46.5", Shoulder: 47cm/18.5" (Approx.) Size: 3XL, Length: 74cm/29.1", Bust: 122cm/48", Shoulder: 48.5cm/19.1" (Approx.) Size: 4XL, Length: 75cm/29.5", Bust: 126cm/49.6", Shoulder: 50cm/19.7" (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 Heated Vest