We'll start off by looking at classic '90s grunge. The original. The classic. The era brought us some incredible grunge bands like Nirvana, Pearl Jam, and Alice In Chains (via Rolling Stone) and their style influenced fans and fashion alike. The style revolves around baggy clothes — particularly oversized jerseys and ripped jeans — and flannel shirts, along with designs that clash a little, and plenty of layering too.

To really nail the look, you should look as if you're not trying too hard to make an effort. The style is deliberately quite laid back and relaxed, an edgy, rebellious look that goes against conventions. Per The Trend Spotter, it's kind of anti-fashion fashion.

You could even go back a few years to when grunge first started to emerge. When we think of the '80s, we normally imagine big clothes and even bigger hair, but grunge fashion grew out of punk to offer an alternative, edgy look that was at odds with the mainstream during the era. Band tees, flannel, and mom jeans were all popular stylistic choices.