Áo giao lĩnh
The áo giao lĩnh (襖交領; lit. 'cross-collar robe'), often known as áo tràng vạt (襖長祓) or áo tràng xiên, or simply áo tràng, was a traditional robe worn by Vietnamese before the 19th century. It was influenced from Han Chinese clothing and was typically worn by the royalty, the aristocracy, the nobility, and the commoners.