Jacket (also known as outdoor jacket), transliterated as jacket, is one of the necessary equipment for outdoor sports.

Jackets are the first choice for all outdoor lovers because of their all-weather functions. Jackets are not mysterious, but when this kind of functional clothing was introduced to China from abroad, China people started with its "free translation" to distinguish it from ordinary clothes, and called it "jacket".

When climbing the snow-capped mountains at an altitude of 2-3 hours from the summit, use the jacket first for final charging. At this time, you will take off your down jacket, take off your big backpack, wear only a lighter dress and go into battle lightly. This is the origin of the Chinese name "jacket".