If the situation permits relaxed casual styling, marry a crew-neck t-shirt with light blue chinos. The whole outfit comes together when you complement this ensemble with a pair of beige leather low top sneakers. So as you can see, a teen's sartorial options are looking great.
This combo of a crew-neck t-shirt and light blue chinos is very easy to do and so comfortable to sport all day long as well! When it comes to footwear, this outfit is complemented perfectly with white leather low top sneakers. Now that's how you keep it casual as you progress through your teens.