The so called "Chav" uniform - tracksuits, gold chains, caps and trainers, is literally just the standard uniform of British working class lads, so it's not even subtle..chav is a slur, not a subculture. The idea it is a subculture was a media fabrication.

Some restaurants have banned "sportswear" which also happens to specifically ban baseball caps, tracksuits, as well as certain brands of trainers. It's essentially a "working class lads are not welcome here" sign.

Britain has a huge classism problem.