I bought this backpack for my HS daughter as our HS doesn't have a schedule that allows students to get from one class, to their locker, and back before the next class begins. She can carry all of her needed books and supplies in this big ole puppy with room to spare. It is heavy duty but lightweight and comes with a lifetime warranty against damage. If the pack fails for any reason, it will get repaired or replaced for free.My daughter loves the pack and intends to carry it through college. Even though she picked the black one, the choice of colors is mind-boggling. You can't go wrong with this one for the money. A co-worker bought one at a national sporting goods store and paid twice as much as it costs here. Just food for thought.