A navy short sleeve shirt and navy shorts are essential in any modern man's properly coordinated casual arsenal. Rounding off with a pair of black leather loafers is the simplest way to give an extra dose of style to your getup. If you're 20, take cues from outfits like this to take a more mature approach to your style.
This combo of a navy short sleeve shirt and navy shorts is definitive proof that a safe casual getup doesn't have to be boring. Give a different twist to an otherwise everyday getup by finishing with navy leather brogues. This combo should erase any doubts you had about wearing dressier clothes in your twenties.