Showcase that you do smart casual men's fashion like no-one else by opting for a white crew-neck t-shirt and charcoal wool dress pants. If you want to feel a bit fancier now, add brown leather dress boots to the equation. During the colder months, when practicality is essential, it can be easy to surrender to a less-than-stylish ensemble. However, this ensemble is a clear example that you can actually stay snug and remain stylish during the colder months.