This combination of a raincoat and dark brown sweatpants is a safe and very stylish bet. Rounding off with athletic shoes is a guaranteed way to introduce a hint of stylish effortlessness to your ensemble. As you can see, it's super easy to look awesome and stay comfortable when colder days are here, all thanks to outfits like this. Casual outfits for adolescent guys aren't actually that hard, as you see.