Just got it, haven't worn it yet. I am adult who loves backpacks, but unfortunately most don;t have more than one big compartment and perhaps a smaller pouch. This one has three back compartments. The smallest interior has two open pockets and one velcro close small pocket. The medium interior is open space. The larger interior has a large padded velcro close tablet compartment.  The side pocket is helpful but would be better if it has double zipper like the other compartments, it only has one zip around.  I thought for a kid's bag there might be pen/pencil holder loops but doesn't have that little feature which would be a nice practical perk.  The water bottle holder seems a bit deeper than most. This style has a fabric bottle holder (which I like)  - not the mesh. I got the Mia Tile pattern because it was the most adult looking and I thought the navy trim would be more practical. Frankly I love all the patterns. This design has a navy back which you can't see in the pictures and a navy interior.  It seems well made. Cushioning on the back too.  I am concerned about the zippers - these nylon tack zippers go haywire easily and ruin things.  But so far so good.