The existence of it.

Test

Suits that actually fit. Does nobody know anymore how a man in a suit is supposed to look? They all think they're so fashionable, instead they look like they walked with a paper suit through a steam bath. Awful.

I'd have men wear more turtlenecks, and tighter jeans. Doesn't need to be TIGHT, just not the insanely baggy styles that have been around for the past 20 years. And turtlenecks... they have the effect of making a guy's shoulders look broader. People underestimate the effect of shoulders on appearance as a whole, in both men and women. If you're a guy with rounded or somewhat narrower shoulders, turtlenecks are your best friend. You can also wear slightly wide-cut t-shirts, or sweaters that have a looser fit at the top or with a logo/detail right underneath where your neck ends.

Make cargo shorts and t shirts illegal. Seriously, you look like a bum wearing that shit. Wear solid color Chinos and sweaters for cold weather, camp collars for warm weather. Stop dressing like mommy picked out your clothes.