This casual combination of a long sleeve shirt and skinny jeans is super easy to throw together in no time flat, helping you look sharp and prepared for anything without spending too much time digging through your wardrobe. And if you want to easily polish off this outfit with one piece, why not finish off with a pair of black leather derby shoes? Loving that this outfit is ideal when cooler weather comes. This is a practical illustration of how to dress with style and look good as you progress through your teens.