Channel your inner fashionisto and consider pairing a navy and green blazer with navy jeans. For a fashionable mix, add a pair of tassel loafers. Smart combos for teen guys aren't actually that hard, as you see here.
Navy and Green Blazer with Tassel Loafers Outfits In Their Teens
Make a navy and green blazer and navy dress pants your outfit choice for truly stylish attire. Tassel loafers are a wonderful option to finish this outfit. If you want to project maturity as a teen, an ensemble like this is a viable option.