This relaxed combo of a shirt jacket and a black and white long sleeve t-shirt is a lifesaver when you need to look stylish in a flash. And if you need to instantly dial down your ensemble with footwear, why not complete your ensemble with navy canvas high top sneakers? On not so cold afternoons, you can rock a version of this summer-to-fall look and look absolutely amazing. So as you can see this combo is something you can totally wear as a teenager.