For a look that's pared-down but can be styled in a myriad of different ways, choose a crew-neck sweater and a short sleeve shirt. And if you need to easily dial down this look with one piece, complement this outfit with a pair of white canvas low top sneakers. Seeing as fall is taking over, this ensemble appears a viable idea for the season. Wear this outfit if you want to present a more professional image as a 20-year-old gentleman.