Team a navy denim jacket with a red plaid short sleeve shirt to demonstrate your styling credentials. Black leather loafers are a fail-safe way to inject an extra touch of refinement into your look. Sport this combo to put together a more conservative look as a gentleman in his thirties.
For an outfit that's pared-down but can be styled in plenty of different ways, wear a navy denim jacket and a red plaid short sleeve shirt. On the shoe front, go for something on the classier end of the spectrum by rocking a pair of dark brown leather brogues. This getup shows that cracking the fashion code as a young guy is not that hard.