For a relaxed casual getup with a contemporary spin, you can go for a charcoal blazer and grey sweatpants. And if you wish to effortlessly tone down your outfit with a pair of shoes, complete your look with athletic shoes. So if you're in search of an outfit that's sharp but also feels entirely spring-ready, this just might be it. As you can see, as a teenage boy, you have a wide range of sartorial options.