Pair a cardigan with navy dress pants if you're aiming for a clean-cut, stylish look. For a dressier twist, finish with burgundy oxford shoes. As you can see here, this getup is a really good pick, especially for summer-to-fall weather, when the temperature is starting to drop. As a young man, you probably want to start dressing with more polish. In this case, inspo like this comes in handy.
Consider wearing a cardigan and a navy wool suit and you'll exude class and refinement. For something more on the sophisticated end to round off your getup, add burgundy oxford shoes to your look. Seeing as temps are dropping, this getup is a smart pick for the transitional season. As a man in his thirties, you want to start dressing in a dressier manner. That's when inspiration like this comes in useful.