The origins of the Ao Dai can be traced back to the 18th century. Initially, it was a two-part outfit worn by both men and women, consisting of a long tunic and trousers. Over the centuries, the design evolved, and by the 20th century, it became predominantly feminine. The modern Ao Dai features a fitted bodice and a flowing skirt that elegantly drapes over the wearer's figure, emphasizing grace and beauty.