A lightweight heating vest which adopts carbon fiber heating elements can provide warm and comfort feeling for you in cold winter. It features 3 gears of heating temperature, 5 heated zones, lightweight and washable, is suitable for outdoor activities such as hiking, cycling, fishing and more. Never miss it Features: Made of polyester, adopts carbon fiber heating elements for fast and stable heating. 3 gears of heating temperature adjustable to meet your different needs. 45/ 113 (blue), 55/ 131 (white), 65/ 149 (red). 5 heated zones provide you with all-around protection, warming your back, stomach, lumbar and more. 5V 2A USB charging, it's convenient to connect it to your power bank and put the power bank into the pocket. Lightweight and portable, suitable for outdoor activities such as hiking, cycling, fishing and more, keeping warm in cold winter. Washable: machine wash or hand wash, put the USB interface into pocket and use a laundry bag before machine wash. Specifications: Size: S/ M/ L/ XL/ 2XL/ 3XL/ 4XL (Optional) Gender: Unisex Color: Black Main Material: Polyester and Carbon Fiber Heating Elements Power Supply: USB Charge, 5V 2A Heating Level: 3 Levels, 45/ 113 (blue), 55/ 131 (white), 65/ 149 (red) Collar: V Collar Sleeve: Sleeveless Package List: 1 x Intelligent Heating Vest