If you're in search of a casual and at the same time seriously stylish outfit, consider wearing a multi colored horizontal striped crew-neck sweater and olive chinos. Beige canvas low top sneakers will be the perfect addition to your ensemble. So as you can see, it's a kick-ass, not to mention spring-appropriate, outfit to keep in your transitional arsenal. This combination illustrates how 20-year-old guys wow in the style department.