Marrying a denim jacket with a burgundy long sleeve shirt is a good choice for a casually cool outfit. Our favorite of a variety of ways to complete this look is with black leather casual boots. As you can see, it's very easy to look sharp and stay snug when chillier weather hits, all thanks to outfits like this one. So if you need style inspiration for dressing as you pass the big 4-0, this pairing is perfect.