For an ensemble that's street-style-worthy and effortlessly neat, pair a white dress shirt with tobacco corduroy chinos. Don't know how to complement this getup? Wear a pair of dark brown suede monks to kick up the classy factor. This one is a viable pick if you're crafting a standout outfit for weird fall weather. Semi-casual looks for gents in their 20s aren't actually that hard, as you see here.