This is definitive proof that a navy turtleneck and charcoal dress pants look awesome when paired up in a classy look for a modern guy. Complete your outfit with a pair of black athletic shoes to keep the look fresh. As the weather starts to cool down, you'll see that an ensemble like this is ideal for fall. As you head into your 30s, you want to start dressing like a grown man. That's when combinations like this are a real lifesaver.