I just took this bag on a weeklong hiking trip in the rain as a day pack. It is basically one big compartment with a sleeve area for a laptop or tablet on the side facing your back, so it is very versatile as long as you remember that anything small/dense will end up at the bottom unless you have a plan around that. Not having lots of separate areas does make it really light, and we got compliments on its appearance. On the less good side, blue ink from a baggage label came off on the white, and water and rubbing alcohol aren't cleaning it up... I could try acetone, but I don't want to kill the waterproofing especially in that location. I'd love to have an external water bottle holder, hopefully in an equally clean aesthetic, since the rolltop dry bag closure means you don't open or close this bag as casually as you may be used to. Even a loop or two on the sides would have worked for me there. However, I do want to stress that it 100% kept things dry and I really am happy to add this bag to my future packing options.