The vest is a kind of collarless and sleeveless, and shorter tops. Its main function is to insulate the front and back chest area and facilitate hands_movement. It can be worn within the outer garment or outside the underwear. The main varieties are various shapes of suit vests, cotton vests, down vests and woolen vests.

Meituan, full name "Beijing Sanqiu Online Technology Co., Ltd.", is a group-buying website founded by Wang Xing on March 4, 2010, headquartered in Chaoyang District, Beijing.

Meituan's mission is to "help people eat better and live better". As China's leading e-commerce platform for lifestyle services, the company owns familiar apps such as Meituan, Dianping, and Meituan Takeaway, and its services cover more than 200 categories such as catering, takeaway, fresh food retailing, taxi, *** enjoyment bicycle, hotel and tourism, movies, leisure and entertainment, etc., with business covering 2,800 counties, districts, and cities across the country.