Want to infuse your closet with some casual street style? Rock a yellow print hoodie with black denim overalls. For something more on the classier end to finish off this outfit, complement your look with a pair of black and white canvas low top sneakers. It's is a viable idea if you're on the lookout for a stylish summer-to-fall transition outfit. As you see, as a 20-year-old, you have a wide range of style options.