Wear a tan suede biker jacket with a light blue crew-neck t-shirt to achieve a cool and casual outfit. Finishing with white and black athletic shoes is a surefire way to add a more relaxed vibe to your look. So so as you can see, it's a kick-ass, not to mention spring-friendly, combination to have in your transeasonal rotation. When it comes to casual fashion for 30-something Millennial guys, this combo looks nice on almost any gent.