This pairing of a denim jacket and olive chinos is on the casual side yet it's also on-trend and extra sharp. For footwear, you could go down the classic route with a pair of black loafers. So if you're looking for dressing tips for 40-year-old gentlemen, this getup is perfect.
Black Loafers with Denim Jacket Smart Casual Outfits For Men After 40
If it's ease and functionality that you appreciate in an ensemble, wear a denim jacket with navy chinos. A pair of black loafers instantly turns up the wow factor of your ensemble. More polished combinations like this look well with grey hair.