Why are hipsters dressing like 90s scaldies?

I've noticed this around Dublin more and more, that your typical NCAD hipsters are dressing like scaldies from the 90s-00s, hoodies, peaked caps and tracksuits tucked into socks, from the look of which are likely picked up from one of the "trendy" thrift shops dotted around the city. It makes it difficult to discern between the 2 sub-groups, so now I just avoid scaldies by identifying the generic, tennis balls under the arm walk.