Such pieces as a white dress shirt and grey cargo pants are an easy way to introduce extra refinement into your off-duty lineup. Serve a little mix-and-match magic by rounding off with a pair of brown suede tassel loafers. When it's one of those bleak autumn days, sometimes only a neat look like this one can get you to face the outside world. And if we're talking style tips for 20-year-old gents, this combination is perfect.