For a casually sleek ensemble, opt for a dark green overcoat and a dark green crew-neck sweater — these items play nicely together. To add a bit of depth to this getup, complement this outfit with olive suede derby shoes. In the winter months, when warmth is crucial, it can be easy to settle for a less-than-stylish getup. This getup, however, proves that you totally can stay comfy and remain equally stylish during the winter months.