For a look that's sophisticated and wow-worthy, consider teaming a black blazer with black wool dress pants. Up this whole outfit by sporting white low top sneakers. During winter, when warmth is imperative, it can be easy to settle for a less-than-stylish getup. However, this getup is a stark illustration that you can actually stay comfortable and remain equally stylish during winter. This is a combination you, as a gent in his thirties, can always rely on.