Most people in China, both men and women, wore their hair long. People said that you got your hair from your parents and so it was disrespectful to cut it.
During the Sui Dynasty, in the 500's AD, the emperor decided that all poor people had to wear blue or black clothes, and only rich people could wear colors.
In the Sung Dynasty, about 1100 AD, a fashion started at the emperor's court for women to bind their feet. Women thought that to be beautiful they needed little tiny feet, only about three inches long. They got these tiny feet by wrapping tight bandages around the feet of little girls, about five or six years old.
The bandages were so tight they broke the girls’ toes and bent them underneath their feet and then they had to walk on them like that. The girls spent most of their time crying for two or three years and then the feet stopped hurting so much. Women with bound feet couldn’t walk very well at all, and when they had to work in the fields often they would crawl. Some of the earliest versions of the story of Cinderella come from Sung Dynasty China. In these versions, the point of the story is that the Prince loves Cinderella because she has the smallest feet of any girl in the kingdom, so the slipper will only fit her.
Then in the Yuan Dynasty, the Mongols brought cotton to China. At first people didn’t want to grow cotton, maybe because the people running the silk industry wanted to keep people buying silk. But the Mongol invasions in the 1200’s destroyed a lot of the mulberry trees that were needed to make silk. The Mongol emperors, like Kublai Khan, turned to cotton to fill the gap. In 1289 AD they ordered the opening of special training centers to teach farmers how to grow cotton. And in 1296 they ordered that farmers who grew cotton could pay lower taxes. Soon everyone liked cotton better than ramie or hemp. Cotton was warmer, and softer, and stronger, and cheaper. You could make it thin for summer, or you could make thick padded clothes out of it that were warm for winter.