For a look that's casually sophisticated and gasp-worthy, rock a beige corduroy shirt jacket with khaki chinos. To bring out a more easy-going side of you, introduce a pair of low top sneakers to the mix. If you're making it through your late 20s, take cues from looks like this to add more seriousness to your wardrobe.
For a look that's worthy of a modern sartorial-savvy guy and effortlessly smart, pair a white dress shirt with khaki chinos. Finishing off with a pair of low top sneakers is an effortless way to infuse a dose of stylish casualness into your look. If you want to portray maturity as a 20-something gent, an ensemble like this is a safe bet.