As you can see, looking seriously stylish doesn't take that much work. Just marry a brown puffer jacket with brown chinos and you'll look awesome. Brown leather derby shoes are an easy way to infuse an added dose of style into this getup. Can you see how super easy it is to look stylish and stay comfortable when fall arrives, all thanks to combinations like this? Wear this ensemble to achieve a more conservative look as a gent in his twenties.