Pre- 1992 Montreal Expos cap , a set on Flickr. These are caps from a not-so-easily forgotten moment in time. I love wearing this cap because no true baseball fan could have any ill will toward the Expos and their legacy. The city of Montreal got done dirty by MLB when they lost their team, but at least they'll always have their hockey. This cap gets a +1 for being crafted from some synthetic materials. It's sort of a Proto-Cool Base material and it's the only true retro cap that is not made out of wool, so I guess that counts for something!