For a look that's extremely easy but can be smartened up or dressed down in a variety of different ways, reach for a brown trenchcoat and a turtleneck. Black leather derby shoes will bring a dose of refinement to an otherwise simple ensemble. Seeing as the weather is getting chillier with each day, this ensemble is a viable idea for in between seasons. All in all, a savvy option when it comes to fashion for guys in their 40s.