This casual combo of a light blue long sleeve shirt and black vertical striped chinos takes on different moods according to the way it's styled. All you need now is a pair of dark brown suede low top sneakers to complement your getup. As you can see here, it's super easy to look amazing and stay toasty when chillier weather comes, all thanks to outfits like this one. If you're not sure how to dress as a gentleman in his 20s, this pairing is a fail-safe option.