Unisex Casual Zipper Double Control 9 Areas Heat Heating Vest USB Charging VestFeatures: turning on the power bank, press and hold the power button for 3 seconds to turn on the power, press the button again to change gears, and press and hold for 3 seconds to turn off the power. Customized button design on the chest, heating control button on the front and back, and Double control 11 areas.Humanized heating part design, heating block is designed for the neck and back prone to cold. Solid color tone, trendy and stylish. Select all-match colors, wear fashionable and stylish, the basic style is all-match, the perfect combination of your warmth and handsomeness. Note: It can be machine washed or hand washed, but please do not wring it out by hand. This product does not include a power bank and needs to be purchased separately. The size of this vest is small, please buy it carefully. If you like it, you can buy 1-2 sizes larger than your own size. Product Description:Season:WinterGender: MenOccasion: Outdoor,CasualMaterial:PolyesterSleeve length:SleevelessPattern Type: CamouflageStyle: Fashion,CasualFit:Fits ture to sizeThickness:StandardHow to wash:Hand wash Cold,Hang or Line DryWhat you get: 1PC Men Vest Size Size. US UK EU Bust Shoulder Length L Large 8 12 38 110cm/43.31'' 41.6cm/16.38'' 67cm/26.38'' Size:L Size.:Large US:8 UK:12 EU:38 Bust:110cm/43.31'' Shoulder:41.6cm/16.38'' Length:67cm/26.38''