Putting together a beige dress shirt and navy dress pants is a surefire way to inject your wardrobe with some manly refinement. A pair of dark brown leather loafers will add more depth to this ensemble. Undoubtedly, it's easier to work through a baking hot summertime day in a easy and breezy getup like this. Rock this outfit when you want to project a classier image as a 20-something.