Feature:1. CONSISTENT HEAT: Electric heating vest produces consistent heat to the core of the body, including the neck, back, abdomen and lower back.2. KEEPS YOUR BODY WARM: Electric heated jacket helps keep your body warm, improves circulation, and relieves muscle pain and tension.3. PERFECT FOR YOU: When the heating undershirt is working, the controller can be turned on or off to meet your different needs.4. EASY TO HANDLE: Heated vest is lightweight and suitable for wearing under outdoor winter jackets. Easy to operate with just a push of a button.5. WATERPROOF FABRIC: Lightweight heated vest is made of waterproof and cotton fabric to keep you warm, dry and protected.Specification:Item Type: Heated VestMaterial: Polyester FiberSize: Bust: Approx. 55cm / 21.7in, Shoulder Width: Approx. 41.5cm / 16.3in, Hem: Approx. 45cm / 17.7in.Package List:1 xHeated VestNote:1. Remove the rechargeable treasure, add neutral detergent hand wash, not strong rubbing or pounding, the laundry will be natural ventilation and dry after convenient wear.2. Long term non application, please do not access the rechargeable treasure.3. Do not use high temperature water or strong acidic detergent.4. Wet clothes with electricity is strictly prohibited, rain, please turn off the power, stop using.5. Use time according to the size of the rechargeable battery capacity.6. Please allow some error due to manual measurement.