For an ensemble that's very straightforward but can be dressed up or down in a variety of different ways, choose a white vertical striped dress shirt and brown chinos. Finishing off with a pair of dark brown suede loafers is an effortless way to breathe a sense of polish into this outfit. Clearly, you're looking at a good pick for a roasting hot summer afternoon. Searching for dressing tips for 20-year-old gentlemen? This combination is great inspiration.