As you can see, it doesn't take that much effort for a man to look effortlessly sleek. Just dress in a dark green double breasted blazer and dark green chinos and be sure you'll look incredibly stylish. You could perhaps get a little creative on the shoe front and dress down your outfit by sporting black low top sneakers. As you move into your 30s, you want to start dressing more like a mature gentleman. If that's the case, combos like this are a goofproof option.