Ao Dai Ngu Than (Áo dài Ngũ thân - King Gia Long's reign)
Based on the four-body robe, in the reign of King Gia Long, the five-body shirt appeared. This type of shirt is often sewn with a small flap to symbolize the wearer's status in society. The aristocratic mandarin class often wore a five-body dress to distinguish it from the working classes in society.
The shirt has 4 flaps sewn into 2 flaps like ao dai. On the front flap, there is an extra flap as a discreet lining which is the 5th lap. This shirt style is sewn in a broad form, has a collar, and is very popular to the beginning of the twentieth century.