Try pairing a crew-neck t-shirt with mint cargo pants for a look that's both laid-back and comfortable. White and red leather low top sneakers are a nice pick to round off this outfit. Laid-back getups for 20-something gents aren't actually that hard, as you see.
If it's comfort and functionality that you appreciate in a look, opt for a crew-neck t-shirt and mint cargo pants. White and black leather low top sneakers are a welcome addition to this ensemble. And if we're talking casual dressing ideas for 20-year-old men, this look looks great on almost any gentleman.