This combo of a grey long sleeve t-shirt and khaki chinos offers comfort and functionality and helps keep it low-key yet modern. Consider a pair of dark brown canvas low top sneakers as the glue that brings this ensemble together. As you can see here, it's super easy to look amazing and stay cozy when chillier weather arrives, thanks to this ensemble. So if you're in search of style ideas on how to dress as you make your way through your teenage years, this outfit is ideal.