This bold casual combination of a light blue long sleeve shirt and blue jeans is very easy to put together without a second thought, helping you look amazing and ready for anything without spending a ton of time rummaging through your wardrobe. A pair of navy canvas low top sneakers looks amazing here. Seeing as autumn is setting in, this look is a viable pick for the transitional season. Looking for dressing ideas for teenage guys? This combo definitely goes to your inspiration folder.