You'll be amazed at how easy it is for any guy to put together this casually classic look. Just a trenchcoat matched with a burgundy turtleneck. Step up your outfit by rounding off with a pair of grey suede loafers. This outfit is a really great pick, especially for autumn, when the mercury is dropping. You can take cues from ensembles like this if you're going through your mid-20s and you want to take a more adult approach to your personal style.