My middle schooler needed something large and easy to access his binders, books, papers. etc. The backpack is not only large but since it is canvas it folds up small enough to easily be stored in his locker when needed. He tends to carry all his binders and books home every day and the backpack has held up amazingly well. We previously went through a lot of backpacks until we came accross this one. Finally I can stop looking because this has everything we wanted.

Update: My son just finished Middle School and this backpack will be accompanying him to HS. That is incredible considering all the abuse it has endured. It has held up to alll the my son packs (shoves) into it. It has room for everything and collapses easily into his locker. Best backpack ever! I wish I could find binders that hold up as well.