The outside of this backpack is adorable!  I thought my son could use it, he loves camo and he's starting 6th grade soon.
I was sad to see how little space it really has in it.  The "mouth" does unzip but it is a small pouch.  Lunch money or a snack might work well in there.  It has a pocket for a water bottle, which is good, but the inside will definitely not fit the larger books he'll have and other things he'll likely need to have in his backpack.
On the other hand, this is just about the perfect size for a younger kiddo.  I gave it to my neighbor who has an elementary school aged daughter who loves camo, too!  I wish it would have been bigger.