For an ensemble that's worthy of a modern stylish gentleman and casually neat, pair a tobacco shirt jacket with a burgundy turtleneck. Finishing with black leather derby shoes is a guaranteed way to add a bit of classiness to this outfit. So as you can see, it's very easy to look sharp and stay snug when chillier weather arrives, thanks to this ensemble. A good illustration of how to dress fashionably as you go into your 30s.