One of the coolest ways for a man to style a charcoal overcoat is to combine it with navy sweatpants in an off-duty look. Avoid looking overdressed by finishing with a pair of white low top sneakers. Keep this look in your front hall wardrobe come spring, and rest assured, you'll save a lot of time trying to pick out an outfit on more than one morning. This outfit illustrates that passing the big 3-0 is no reason to shed casual style altogether.