For a foolproof casual option, you can always rely on this pairing of a navy shawl cardigan and charcoal wool chinos. If you're clueless about how to finish, a pair of brown leather casual boots is a nice option. Laid-back looks for 20-something gents aren't actually that hard, as you see.
Charcoal Wool Chinos with Brown Leather Casual Boots Casual Outfits In Their 20s
You'll be amazed at how easy it is for any man to get dressed like this. Just a navy print shawl cardigan combined with charcoal wool chinos. To add a little flair to this outfit, add brown leather casual boots to the mix. A nice, less conservative outfit for a younger guy.