A brown duffle coat and jeans are among the crucial elements in any modern man's smart casual wardrobe. Channel your inner Ryan Gosling and polish up your look with a pair of dark brown leather brogues. In winter, when warmth is crucial, it can be easy to settle for a less-than-stylish getup in the name of convenience. This getup, however, is a bright example that you can actually stay warm and remain equally stylish in winter.