For a look that's very easy but can be manipulated in a great deal of different ways, consider wearing a turtleneck and light blue jeans. A pair of tan athletic shoes will immediately dial down a dressy outfit. Relaxed casual getups for over-40 men aren't actually that hard, as you see.
This look with a turtleneck and black chinos isn't hard to pull off and is open to more sartorial experimentation. A cool pair of tan athletic shoes is an effortless way to infuse a touch of stylish casualness into your ensemble. Perfect if you're after some amazingly inspiring casual style for gents in their 40s.