I just received my CalPak rolling backpack and am very happy. It looks really nice and rolls very smoothly. I like the tire design and the comfort grip handle on the top. I chose the blue plaid color and it's super cute. This pack has a lot of room but does not have a specific water bottle space. The front pocket however works well for this. I think this pack will work nicely for me. If I have any complications after using it for real I'll rewrite my review, but for now I think I'm set for the new school year.