If you gravitate towards casual combos, why not marry a charcoal cardigan with black chinos? Serve a little mix-and-match magic by rocking brown suede double monks. Take cues from getups like this if you want to add seriousness to your 20-year-old's style.
Marrying a charcoal cardigan with black vertical striped chinos is a nice idea for an off-duty but seriously stylish getup. And it's amazing what a pair of brown suede double monks can do for the outfit. Those who wonder how to sport smart dressing as you navigate your 20s, you have your answer.