1. Baseball players play a role in shading due to the influence of the venue and time on the sun.
2. The baseball cap can prevent the athlete's hair from being constrained during the game due to excessive length of the hair.
3. Baseball players play in the winter or colder seasons, baseball caps can play a role in ensuring the warmth of the head
4. The baseball cap can be used as a means to prevent small items from falling into the hair, such as sand prevention during baseball games.
5. With the development of baseball caps, the above four items as the most basic functional features of baseball caps have not met the needs of modern people. Baseball caps are becoming more and more fashionable and can be used as a kind of decorative items.