Professional and college teams' sportswear has become extremely popular with some gangs. Members wear sweatshirts or ballcaps to signify their gang. There are several reasons why gangs do this, and they're not all obvious.
When citizens hear the word "gang," they usually conjure up stereotypical images of Hispanic, Asian, black or white thugs roaming inner-city streets. But most cops working the gang detail understand that looks can be deceiving.