The áo dài is a Vietnamese national garment worn by both sexes but most commonly by women. Besides suits and dresses nowadays, men and women can also wear áo dài on formal occasions. It is a long, split tunic dress worn over trousers. Áo translates as shirt. Dài means "long". The term can be used to describe any clothing attire that consists of a long tunic, such as "nhật bình".
