Sleeve Length:Long SleeveCollar:O NeckThickness:StandardSeason:Winter【Material】This electric vest is made of 80% filled silk cotton material, which is wear-resistant, and easy to clean. It is made of light and soft material, suitable for shirts and under any thick coats or jackets without being noticed. Suitable for general outdoor and daily use. 【Features】 The heating vest has a built-in USB port, which is powered by any 5V2A mobile power supply. 5V voltage, compatible with most mobile power supplies on the market. Note: The heating vest does not include a power bank. 【Style】The outer layer is durable to make the vest windproof, and some lightweight insulating fabrics are used inside to keep the vest comfortable and soft. 1 heated vest can replace at least 2 refills. 【Unique Design】Durable fabric and carbon fiber, heating is completely safe to hand wash and machine wash. The battery storage pocket must be kept closed before cleaning .We guarantee quality and working life. 【Match】This vest can be worn with Jeans, sweaters, warm clothes,boots, sweaters, sports shoes 【Occasions】The heated vest helps promote blood circulation and relieve muscle pain. It is very suitable for walking your dog, skiing, hiking, motorcycle, climbing, sports, camping, fishing, and even keeping warm in the cold winter. Package include:1 PC Women CoatGender: WomenPlease check the size chart before order. If you are not sure the size,please send message to usPlease compare the detail sizes with yours before you buy!!! Colors may be slightly different depending on computer and monitor settingsMaterial:PolyesterPlease allow 1-3cm differs due to manual measurement, thanks (All measurement in cm and please note 1cm=0.39inch)Pattern Type:Solid