For a look that's worthy of a modern stylish gentleman and casually sleek, pair a navy turtleneck with grey check dress pants. A pair of loafers will take this outfit in a dressier direction. Take cues from looks like this if it's time to add maturity to your 20-year-old's style.
Navy Turtleneck with Loafers Dressy Cold Weather Outfits For Men In Their 20s
A navy turtleneck looks so classy when worn with navy dress pants for a look worthy of a refined gentleman. Loafers will tie the whole thing together. If you're wondering how you should dress as a man in his 20s, this getup gives a good idea.