For a casually smart look, pair a duffle coat with white chinos — these items work beautifully together. Take an otherwise classic look in a more laid-back direction by rounding off with a pair of low top sneakers. During the winter months, when warmth is imperative, it can be easy to settle for a less-than-stylish outfit. But this outfit is a bright example that you totally can stay comfy and remain equally stylish during the winter months. All in all, smart casual and mature enough for a 20-something gent.