Why not rock a navy denim shirt with beige chinos? These two items are very functional and will look good married together. If you're hesitant about how to round off, a pair of white canvas low top sneakers is a nice pick. When spring is in full effect, you'll appreciate how perfect this ensemble is for unpredictable spring weather. Perfect if you're on a mission for some incredibly inspiring laid-back style for 20-year-old guys.