So as you can see, looking casually smart doesn't take that much effort. Choose a charcoal overcoat and charcoal jeans and you'll look incredibly stylish. A pair of brown leather casual boots is a great idea to round off your ensemble. Keep this outfit in your front hall wardrobe come warmer days, and we guarantee you'll save a lot of time planning a look on more than one morning. Think it's hard for 20-something guys to perfect semi-casual style? This combo will prove you wrong.