This combination of a grey crew-neck sweater and chinos is clean, sharp and super easy to recreate. On the footwear front, this ensemble is complemented nicely with plimsolls. Now that's how you keep it casual in the style department as you're coming of age.
Plimsolls with Chinos Outfits In Their Teens
If you're after a casual but also on-trend getup, dress in a white and navy vertical striped long sleeve shirt and chinos. Introduce a pair of plimsolls to the mix et voila, the ensemble is complete. Guys who wonder how to pull off modern casual dressing as you move through your teens, this ensemble should answer your question.