Who said you can't make a fashionable statement with a relaxed look? You can do that easily in a long sleeve shirt and a charcoal crew-neck t-shirt. You could perhaps get a little creative with footwear and introduce a pair of black leather derby shoes to the equation. This pairing should inspire anyone who had doubts about more polished style in his teens.
Charcoal Crew-neck T-shirt with Long Sleeve Shirt Smart Casual Chill Weather Outfits For Men In Their Teens
You're looking at the indisputable proof that a long sleeve shirt and a charcoal crew-neck t-shirt look amazing when married together in an off-duty getup. For something more on the elegant side to complement your ensemble, introduce a pair of tan nubuck casual boots to the equation. Overall, a great demonstration of semi-formal style for a teenage guy.