Pair a black and white crew-neck sweater with a dress shirt and you'll achieve a sleek and polished getup. Complete your ensemble with white canvas low top sneakers to immediately bump up the cool of your ensemble. This combo should erase any doubts you had about wearing classier clothes as a young guy.
Definitive proof that a black and white crew-neck sweater and a dress shirt look amazing when married together. Rounding off with black leather chelsea boots is an effective way to infuse an extra dose of sophistication into your look. You can take inspiration from combos like this if you're making it through your late 20s and you want to take a more serious approach to your personal style.