I'm still giving it 5 stars even though I returned the backpack. I am full-time nursing student and I thought this backpack would be perfect to haul my things. It is a great concept. It has a lot of great thought out compartments and pockets. If I were not a nursing major, I would have kept it hands down. The ONLY thing I would change is to use a more durable material for the outside water bottle pockets. Maybe not use that cheap meshy material but more like what The North Face uses in their top of the line backpacks with a drawstring closure.