As you can see here, it doesn't take that much work for a man to look sharp. Go for a white and navy dress shirt and charcoal chinos and you'll look amazing. Introduce casual boots to the equation and the whole look will come together. With a look like this in your winter wardrobe, you're guaranteed to keep warm and look stylish despite the below-freezing temps. A good pairing to make you a well-dressed man in his 40s, rather than just a man in his 40s.
Marrying a white and navy dress shirt and black chinos is a guaranteed way to breathe class into your daily fashion mix. If you're not sure how to round off, complement your outfit with casual boots. During winter, when warmth is everything, it can be easy to surrender to a less-than-stylish ensemble. But this ensemble is a vivid example that you can actually stay toasty and remain stylish in winter. This getup illustrates that as a gentleman over 40, you have a wide range of sartorial options.