This relaxed casual combo of a cable sweater and a crew-neck t-shirt is extremely easy to throw together without a second thought, helping you look seriously stylish and prepared for anything without spending too much time going through your wardrobe. Finishing off with a pair of black leather casual boots is a surefire way to add a bit of depth to your outfit. So if you need fashion tips on how to dress as you progress through your teens, this outfit is a great example.