"Red vest" refers to the iconic equipment worn by the delivery staff of Meituan, also known as "red vest" or "Meituan vest". This kind of vest is often bright red with the words "Meituan Takeaway" or "Meituan Delivery Staff" printed on it, which is convenient for customers and businesses to identify. Meituan take-out is a domestic online ordering platform, which provides services such as food and beverage take-out, fresh fruits and vegetables and supermarket shopping. As a take-away platform, Meituan relies on the delivery staff to provide delivery services for users, so the "red vest vest" has also become the symbol of the delivery staff of Meituan. However, it should be noted that there are other take-away platforms or businesses that will use similar red vests as the signs of deliverymen, so it depends on the words.