If you're looking for a casual and at the same time on-trend ensemble, try pairing a navy turtleneck with brown corduroy chinos. Why not take a more casual approach with footwear and finish off with a pair of low top sneakers? As you can see, this getup is a really good pick, especially for unpredictable fall weather, when the temperature is starting to drop. This combination proves that after 40 you still have a wide array of sartorial options.