I've seen that a lot people that when they look at this, they say "oh look, he's cosplaying as Jotaro (That's a JoJo reference)". That's just WRONG, but it's understandable, since Banchou fashion doesn't exist outside of Japan. (This blog is just to explain to those who don't know)
A Banchou is basically the leader of a gang of delinquents, in other words: it's a Japanase punk gang member clothing style and the one that I showed you (the guy is Bahn from Fighting Vipers, if you are asking), it's the most common one. Though it's pretty old school and out of date as far it goes and nowadays; the whole punk gang look is usually geared toward the members staying in their school uniforms like this (Kuwabara from Yu Yu Hakusho was a good example of being a punk in uniform).
The only thing that distinguishes Jotaro from other Banchous (design wise) is that his hat has the Lucky Land Communications logo on it and that his hat eventually becomes his hair(at least during part 3,later on Araki put other details to Jotaro's desing to futher distance him from other banchous)
So there's that, the more you know....