For a cool and relaxed ensemble, consider pairing a purple vertical striped short sleeve shirt with black shorts — these pieces work really nice together. For a stylish on and off-duty mix, complement your outfit with black leather derby shoes. As a young man, you're guaranteed to appreciate this look.
A navy long sleeve shirt and black shorts are the kind of a never-failing off-duty getup that you need when you have zero time. Black leather derby shoes will inject a dash of class into an otherwise all-too-common look. A wonderful example if you're aiming to shed your boyish look and start dressing more like a mature gentleman.