For a look that's pared-down but can be manipulated in plenty of different ways, consider pairing a blue long sleeve shirt with charcoal chinos. When in doubt as to the footwear, add a pair of desert boots to this look. So so as you can see, it's a stylish, not to mention spring-friendly, outfit to keep in your transeasonal closet. So if you're looking for style ideas on what to wear in your 40s, this pairing is a wonderful example.