Go for a simple but at the same time casual and cool getup pairing a black leather bomber jacket and a white crew-neck sweater. Finishing with a pair of burgundy leather loafers is the most effective way to bring an added dose of style to this look. It's is a smart choice when it comes to a killer look that will take you from summer to fall. As a 30-year-old gent, you want to start dressing like an adult man. If that's the case, outfits like this become a great source of inspo.