This casual pairing of a shirt jacket and a white and navy long sleeve t-shirt is super easy to throw together in no time, helping you look on-trend and prepared for anything without spending too much time going through your wardrobe. Bring a classier twist to an otherwise mostly casual ensemble by rocking a pair of burgundy leather derby shoes. As you can see, it's extremely easy to look dapper and stay comfortable when colder weather comes, all thanks to ensembles like this one. This pairing shows that figuring out fashion as you go through your teenage years is quite manageable.