A navy denim shirt and olive chinos? It's an easy-to-wear getup that you could work on a daily basis. To infuse a dose of stylish nonchalance into your ensemble, add a pair of light blue athletic shoes to the equation. Perfect if you're on a mission for some amazingly inspiring style for guys in their 40s.
If you're facing a sartorial situation where comfort is above all, this combination of a navy denim shirt and olive chinos is always a winner. Brown leather boat shoes look awesome finishing off this ensemble. This combination should erase any doubts you had about wearing casual clothes over 40.