Marry a parka with a beige blazer to feel 100% confident and look casually cool. If you feel like dressing up a bit now, complete this ensemble with black suede loafers. This outfit is a pretty smart pick, especially for autumn, when the mercury is falling. As a 30-year-old guy, you want to start dressing like a grown man. If that's the case, inspiration like this comes in very handy.