Flaunt your polished self by wearing a short sleeve shirt and a black suit. You can get a bit experimental in the footwear department and dial down this outfit by finishing with a pair of navy and white athletic shoes. So if you're looking for dressing tips for 30-year-old gentlemen, this combo is a good example.
This combination of a short sleeve shirt and khaki chinos is put together and yet it looks relaxed and apt for anything. Ramp up your ensemble by finishing off with navy and white athletic shoes. As a 30-something guy, you probably want to start dressing more maturely. That's when inspo like this comes in very handy.