Marrying a white and black vertical striped dress shirt with grey dress pants is an amazing idea for a stylish and elegant getup. For something more on the casually cool end to complement your ensemble, complement this look with a pair of brown suede low top sneakers. Clearly, it's easier to work through a warm day in a breezy outfit like this. As you slip into your 30s, you probably want to start dressing maturely. In this case, inspo like this comes in handy.