Get into dandy mode in a black turtleneck and black dress pants. If you feel like dressing up a bit, complete this getup with dress boots. In winter, when warmth is key, it can be easy to settle for a less-than-stylish getup in the name of convenience. But this getup is a vivid example that you can actually stay comfortable and remain stylish at the same time in winter. This getup is most probably exactly what you've been looking for as a gentleman in his 30s.