Why not make a long sleeve shirt and olive chinos your outfit choice? Both items are super functional and will look good paired together. To give this outfit a more relaxed feel, introduce a pair of athletic shoes to the mix. A nice, less conservative pairing for gentlemen in their forties.
Why not wear a long sleeve shirt and grey sweatpants? Both of these items are very comfortable and will look nice paired together. A pair of athletic shoes instantly bumps up the fashion factor of your getup. Those who wonder whether you can still wear edgy casual looks after 40, this combination should answer your question.
A long sleeve shirt and white jeans? It's easily a wearable outfit that you could wear on a day-to-day basis. For something more on the cool and casual end to complete this outfit, complete your look with athletic shoes. Ideal if you're searching for some seriously inspiring style for middle-aged men.