Description: There are three levels of temperature control which can intelligent heating. Using high-quality carbon fiber heating wire which has fast heating speed and high temperature resistance. Electric heated vest made of polyester material with dense stitching giving you a comfortable and soft feeling. There are 9 sizes for you to choose from: M L XL 2XL 3XL 4XL 5XL 6XL 7XL. It is suitable for skiing mountaineering all kinds of outdoor activities and indoor environment. Item Name: Heated Vest Material:Polyester Power Supply: USB Size Details: [Our Size M] Bust: 106cm/41.7 Top Length: 63cm/24.8 Shoulder: 40cm/15.7 Hem: 98cm/68.5 Recommended Weigh: 95-115kg(Approx.) [Our Size L] Bust: 110cm/43.3 Top Length: 65cm/25.6 Shoulder: 41.5cm/16.3 Hem: 102cm/70 Recommended Weigh: 115-130kg(Approx.) [Our Size XL] Bust: 114cm/44.9 Top Length: 67cm/26.4 Shoulder: 43cm/16.9 Hem: 106cm/71.5 Recommended Weigh: 130-145kg(Approx.) [Our Size 2XL] Bust: 118cm/46.5 Top Length: 69cm/27.2 Shoulder: 44.5cm/17.5 Hem: 110cm/73 Recommended Weigh: 145-160kg(Approx.) [Our Size 3XL] Bust: 122cm/48 Top Length: 71cm/28 Shoulder: 46cm/18.1 Hem: 114cm/75 Recommended Weigh: 160-175kg(Approx.) [Our Size 4XL] Bust: 128cm/50.4 Top Length: 72.5cm/28.5 Shoulder: 48cm/18.9 Hem: 120cm/77 Recommended Weigh: 180-200kg(Approx.) [Our Size 5XL] Bust: 134cm/52.8 Top Length: 74cm/29.1 Shoulder: 50cm/19.7 Hem: 126cm/49.6 Recommended Weigh: 200-220kg(Approx.) [Our Size 6XL] Bust: 140cm/55.1 Top Leng Notes: Please refer to our size chart and choose the right size. Due to the light and screen setting difference the color of the item may be slightly different from the pictures. Package Includes: 1 X Heated Vest