Look the best version of yourself in a dark brown plaid overcoat and charcoal dress pants. As for the shoes, stick to the casual route with a pair of tan canvas low top sneakers. This ensemble shows that as a 20-something gentleman, you have a wide range of sartorial options.
For manly refinement with a twist, marry a dark brown plaid overcoat with charcoal dress pants. For something more on the cool and laid-back end to round off this ensemble, complement this outfit with white low top sneakers. This outfit is probably exactly what you're looking for as a young man.