One of the most popular ways for a man to style a beige long sleeve shirt is to marry it with tan shorts for a laid-back combo. This outfit is rounded off really well with desert boots. When it comes to casual outfit ideas for teen guys, this combo looks great on most gentlemen.
Why not consider wearing a beige long sleeve shirt and beige chinos? As well as very functional, these two pieces look great paired together. Complement your look with desert boots and the whole look will come together quite nicely. Overall, a perfect example of casual style for teens.