Heated apparel is made of high quality handcrafted heating element. you can keep warm in the cold season.Reliability and service,You can't feel any foreign matter when you put on your body, and you can keep it at ease.Once you wear it you will expand your cold day\u2019s activities Even if it is machine washed many times does not affect the heat generation performance. You can keep warm in the cold season.After preheating, each press the button will cycle through the vest's temperature settings the best comfort temperature of the human body.Perfect for rainy, misty or chilly weather.Super soft and warmthat makes the best heat retention.Quality fabric can help to keep out and prevent heat from losing.Donot wring, please hang dry in shade.