Why not dress in a dark green military jacket and black jeans? As well as very comfortable, both of these pieces look cool paired together. For a more relaxed spin, introduce black and white suede low top sneakers to your outfit. This combination shows that as a mature gentleman, you have a vast array of dressing options.
For a casually dapper outfit, dress in a dark green military jacket and black jeans — these two pieces work pretty good together. Balance this outfit with a more laid-back kind of footwear, such as this pair of white leather low top sneakers. All in all, a great example of relaxed casual fashion for men in their forties.