A navy shirt jacket and a sweater vest are absolute must-haves if you're planning a sharp wardrobe that holds to the highest men's style standards. Clueless about how to complete this ensemble? Finish off with burgundy leather derby shoes to kick up the classy factor. As the weather turns cooler, you'll find that a look like this is perfect for this time. A great getup to make you a dapper gentleman in his 40s, rather than just a gentleman in his 40s.