Wearing a hat often does not harm hair growth. But ordinary people don't lose their hair by wearing hats every day, but for those who have hair loss problems, wearing hats for too long may aggravate the problem.
According to China Daily, wearing a hat for a long time can lead to poor breathing in the scalp pore, accumulation of sebum in the scalp, which can easily lead to dandruff, itching or skin inflammation, leading to hair loss.
By the way, if you want to custom some baseball hats, you can try to contact ZYCAPS, which is a Chinese caps manufacturer since 1992. They are very professional. At the same time, they are the supplier of Lastking, new era, and QuickSilver. You can google ZYCAPS, then you can get their website and contact them.