Generally speaking, men wear white or other colors of "tall hats". Wearing a white hat is a symbol of Islam, that is, you can tell at a glance that he is a Muslim. This kind of hat is used in most Muslim areas of China. If you go to South Africa, they wear hats like boats because they are on an island country.

Ladies usually wear "hijab" or "scarf", which mainly means that others can't see his shame or hair, and customs vary from place to place. In the Middle East, the state religion is Islam, and you will see some women covering their heads to reveal one eye.

A long time ago here in Qinghai, there were three main colors of hijab. Generally, unmarried girls wear green hijab, married women wear black hijab, and the elderly generally wear white. But it is not so clear now that it is adapted to local conditions.