This relaxed casual pairing of a dark brown crew-neck t-shirt and black and white vertical striped chinos is a real lifesaver when you need to look laid-back and cool but have zero time to plan an outfit. You could perhaps get a bit experimental when it comes to footwear and dial down your ensemble by wearing a pair of beige athletic shoes. This combo demonstrates how to kill it in the casual style department as a 20-something gent.