DS is in 5th grade. He's using the same UA backpack he had last year, which was plenty roomy. I think it's going to be too small this year. He's having to carry home a 2" binder every day that's pretty full, plus his lunch box, plus a water bottle and that's super tight. If you organize it just right it's a tight close, but he's not that organized nor does he have the patience for it at 10. If he has to bring home any books or anything he'll be in big trouble. Any suggestions for bigger backpacks?