Putting together a white and black horizontal striped long sleeve t-shirt and shorts will be solid proof of your expertise in menswear styling even on off-duty days. To give your ensemble a more sophisticated aesthetic, why not complement this getup with grey driving shoes? A knockout look like this one is just what you need on an extremely hot warm weather day. Men who are curious how to sport modern off-duty style as you drift through your 20s, this combination should answer your question.