Sui and Tang dynasty By the end of the
Sui dynasty, the
mili, which was previously worn, became less conservative and evolved into the weimao as it was no longer required to conceal the entire body and instead only the face had to be concealed. By the time of
Wu Zetian's ascendancy, the weimao was in fashion while the mili had gradually disappeared. The weimao-style hat was revived in the 10th century when women started to wear mianyi (), which was also known as gaitou () by the common people. It is likely that the practice of wearing veiled hats, which was continued by these Song dynasty women, was due to them being unaware of its foreign and masculine origins. == Derivatives and influences ==