This smart casual combination of a blazer and blue jeans is super easy to throw together in no time, helping you look on-trend and prepared for anything without spending too much time digging through your wardrobe. Derby shoes bring an elegant aesthetic to the look. As you can see here, this getup is a really nice idea, especially for in-between weather, when the temperatures are dropping. And if we're talking style tips for adolescents, this look is ideal.