For a safe smart casual option, you can rely on this combo of a shearling jacket and a dark green cable sweater. For something more on the smart side to finish off your outfit, introduce a pair of dark brown leather chelsea boots to the equation. While it can be a bit of a juggling act to look stylish in extra cold, it's combinations like this that prove it's actually possible. And if we're talking style for young gentlemen, this combo is perfect.