Go for a pared down but at the same time casual and cool outfit in a burgundy corduroy shirt jacket and charcoal skinny jeans. If you don't know how to finish, a pair of low top sneakers is a foolproof option. A killer getup that transitions easily into fall like this one makes it super easy to welcome the new season. Wondering how to nail casual outfits as you make your way through your teen years? This pairing is a practical example.