1. Touch it with your hands

MLB hats are made of wool; fake ones are usually made of cotton.

2. Are the letters in the middle?

Are there stickers on the brim of the hat printed clearly?

3. The back or side brim of the hat

The LOGO of the MLB hat has a strong hollow feeling, the embroidery is very clear, and the authentic texture is very concave and convex.

4. Whether the wiring is clear and reasonable.

See if the second wire from the right side of the hat brim is connected to the top wire.

Extended information

The form and color of the hat must match the clothing.

Hats can also be used to protect hairstyles, cover bald spots,

or as part of uniforms or religious attire.

Can be of different types, such as high hats, sun hats, etc.

Some hats have an outward-extending canopy called a visor.

Wearing a hat has different etiquette in different cultures.

This is especially important in Western culture, because wearing a hat was a symbol of social status in the past.

Reference: Baidu Encyclopedia - Hat