A turtleneck and dark green cargo pants are surely worth adding to your list of bona fide casual staples. A good pair of dark brown chunky leather derby shoes is an effortless way to punch up this ensemble. As you can see here, it's super easy to look awesome and stay cozy when colder weather arrives, thanks to this ensemble. Searching for outfit ideas for over-40 gents? This outfit is definitely worth saving to your inspiration folder.