For a look that's refined and wow-worthy, choose a dark green suit. For something more on the cool and casual side to complement this ensemble, complete your outfit with a pair of dark brown leather loafers. Clothes like these are something a guy should definitely treat himself to as he ages.
To look smooth and stylish, consider wearing a dark green suit and a pink short sleeve shirt. And if you wish to easily ramp up your ensemble with one single item, why not complete this ensemble with a pair of dark brown leather loafers? This ensemble is a stark illustration men in their forties can very well kill in the fashion department.