Mod Fashion is a fashion movement that began in the 1960s in England and took over the globe. It was a very bold and groundbreaking style at a time when the world was starting to make funkier choices in fashion. The style consisted of bold geometric shapes and looked like something out of a high fashion runway. Mod fashion was used both on the runway and out in public. To some, it must have looked like the future had arrived.
Austin Powers fans might recognize the style because that series of movies is full of the mod style. It is a style that can still work today, though many styles can work today as we've become less restrictive with our styles as time goes on. At this point, you could wear a paper bag and people would probably be OK with it as long as you owned it.