Your clothing changes not only look really cool on screen, but also have a big impact on how people react to you. In the beginning, if you're not in green (your gang colors), people get upset with you. Your clothing affects your sex appeal and how people on the street talk to you.

There are various clothing stores around the map - each has a different type of clothing.

Bincos - Los Santos
Zip - San Fierro

Carl wears a combat jacket and watch cap

Grand Theft Auto San Andreas Walkthrough