This casual pairing of a navy long sleeve shirt and jeans is extremely easy to pull together without a second thought, helping you look amazing and prepared for anything without spending too much time digging through your closet. You can get a bit experimental with footwear and play down your getup by wearing white canvas high top sneakers. So if it's an extremely hot afternoon and you want to look sharp without exerting much effort, this ensemble will do the job in next to no time. When it comes to casual style for teenagers, this outfit is perfect.