Features: Stylish design with breathable fabric,soft shells fabric exterior with breathable lining ensures you don't lose any excess heat and enjoy comfortable warmth Heat across body,carbon fiber heating component generate heat across core body areas with just a simple press of the button. For all walks of life and adventures,warm choice for you, family members, friends, employees, to enjoy outdoor activities. Wonderful gift,sweet warm gift for friend family or yourself. USB powered for lasting heat,uniquely powered by a portable charger with usb output to keep warmth in and stand up against bad weather. Specifications: Material:Polyester+Cotton Color:Black,Green,Gray Size:L Back Middle Length:65cm(25.59inch) Shoulder:44.5cm(17.52inch) Bust:53cm(20.87inch) Size:XL Back Middle Length:67cm(26.38inch) Shoulder:46cm(18.11inch) Bust:55cm(21.65inch) Size:XXL Back Middle Length:69cm(27.17inch) Shoulder:47.5cm(18.70inch) Bust:57cm(22.44inch) Size:XXXL Back Middle Length:71cm(27.95inch) Shoulder:49cm(19.29inch) Bust:59cm(23.23inch) Size:4XL Back Middle Length:73cm(28.74inch) Shoulder:50.5cm(19.88inch) Bust:61cm(24.02inch) Package Includes: 1 Piece Heated Jackets note: Please allow 1-2cm errors due to manual measurement. This is a unisex heated vest, please read the size chart carefully before purchasing.