Description: This product needs to be linked to a mobile power supply for heating, and it will automatically stop heating after not being plugged. The mobile power supply must be purchased separately. With three-level temperature control, it can be intelligent heating, you can adjust suitable temperature. The energy saving level is 25 degrees, comfortable level is 35 degrees, warm level is 45 degrees. Made of high quality polyester, it's waterproof, scratch-resistant and durable. There are 7 sizes for your choice, M, L, XL, 2XL, 3XL，4XL, 5XL. It's very suitable for home daily use in winter, outdoor camping, etc. Item Name: Heated Vest Material:Polyester Type: Standard Power Supply: USB Size Details: [Our Size M] Bust: 102cm/40.2", Shoulder: 42.8cm/16.9", Hem: 50cm/19.7", Length: 63cm/24.8" (Approx.) [Our Size L] Bust: 106cm/41.8", Shoulder: 44cm/17.3", Hem: 52cm/20.5", Length: 65cm/25.6" (Approx.) [Our Size XL] Bust: 110cm/43.3", Shoulder: 45.2cm/17.8", Hem: 54cm/21.3", Length: 67cm/26.4" (Approx.) [Our Size 2XL] Bust: 114cm/44.9", Shoulder: 46.4cm/18.3", Hem: 56cm/22.1", Length: 69cm/27.2" (Approx.) [Our Size 3XL] Bust: 118cm/46.5", Shoulder: 47.6cm/18.8", Hem: 58cm/22.9", Length: 71cm/28" (Approx.) [Our Size 4XL] Bust: 122cm/48.1", Shoulder: 48.8cm/19.2", Hem: 60cm/23.6", Length: 73cm/28.8" (Approx.) [Our Size 5XL] Bust: 126cm/49.6", Shoulder: 50cm/19.7", Hem: 62cm/24.4", Length: 75cm/29.6" (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