As you can see here, it doesn't require that much effort for a man to look stylish. Just wear a dark brown polo with khaki wool dress pants and be sure you'll look incredibly stylish. Complete this getup with a pair of brown suede loafers to avoid looking too casual. This outfit is a pretty savvy choice, especially for autumn, when the mercury is dropping. A no-brainer combo appropriate for 20-year-old gents who prefer to dress more elegantly.