This combo of a navy shirt jacket and a black turtleneck is hard proof that a pared down getup can still be really dapper. Rounding off with dark brown leather derby shoes is a simple way to breathe an air of class into your ensemble. In the colder months, when functionality is everything, it can be easy to settle for a less-than-stylish ensemble. But this ensemble is a clear example that you can actually stay snug and remain stylish in the colder months.