How to distinguish the hat number of the hat?

The hat has the functions of sunshade, decoration, warming and protection. It is one of the decorations that many young people like, and it has many types.
The average adult man’s hat number is 55-56, the hat is 50-55, and the baby hat is 42-46. Adult bonnets, sun hats and sports caps are only 1-3. The knit cap is size-independent, it can be stretched and cope, and some are calculated by weight-gram.

Hats are worn on the head, and most of them cover the entire top of the head. Mainly used to protect the head, some hats have protruding edges that can cover the sun. Hats can also be used for dressing up, as well as to protect hair, cover baldness, or as part of a uniform or religious costume. Can be different types, such as high hats, sun hats, and so on. Some hats have a canopy that extends outwards, called the visor. Wearing hats has different etiquettes in different cultures, which is especially important in Western culture, because wearing hats in the past is a symbol of social identity.

In ancient times, there were no hats and towels. People used silk or linen towels to wrap their heads or tie them. Nowadays, the “headscarves” used by the southwestern minority are the legacy of ancient towels. During the Northern Zhou Dynasty, Emperor Wu was easy to use for his own army. He specially made the towel into a shape with four corners. At that time, it was called “Taro”, and it was actually the earliest hat in China. Later, the four-corner cap gradually changed to two long angles extending to the left and right, thereby evolving into a black hat. The two corners that protruded from the left and right crossed behind the head and developed into the helmet of the military officer. Not only does China have an ancient history of hat development, but abroad also used hats as a symbol of rights and status. In the early days of Rome, hats were the symbol of free and legal citizens, and slaves could only cover their heads to cover the sky.