A navy and white windbreaker looks especially cool when teamed with cargo pants in a laid-back look. When it comes to shoes, complement your getup with white low top sneakers. Casual getups for 40-year-old guys aren't actually that hard, as you see here.
Choose a beige shawl cardigan and cargo pants to put together an interesting and modern-looking relaxed casual ensemble. If you wish to immediately dress down this getup with a pair of shoes, rock a pair of white low top sneakers. This combination is a good illustration men over 40 can very well slay in the style department.
A navy print varsity jacket and cargo pants are great menswear items to add to your day-to-day casual fashion mix. Complete your getup with white low top sneakers and you're all done and looking smashing. This pairing demonstrates that as a mature man, you have a wide array of sartorial options.