This elegant combination of a charcoal herringbone blazer and grey wool dress pants is a frequent choice among the dapper guys. If you're puzzled as to how to finish off, a pair of black leather derby shoes is a savvy pick. During winter, when warmth is essential, it can be easy to surrender to a less-than-stylish ensemble in the name of functionality. This ensemble, however, proves that you can actually stay snug and remain equally stylish in winter. A reliable option combo proper for 30-year-old guys.