If you don't take fashion lightly, go for classic style in a grey blazer and chinos. A pair of black leather loafers easily boosts the wow factor of any ensemble. And if we're talking style for mature men, this look is ideal.
Grey Blazer with Chinos Smart Casual Hot Weather Outfits After 40
A grey blazer and chinos worn together are a sartorial dream for those dressers who appreciate refined styles. White leather low top sneakers will give a more relaxed feel to an otherwise mostly classic ensemble. Overall, a perfect demonstration of smart casual style for 40-something gentlemen.