I cannot say enough about this bag. For a recent trip to Mexico, we could only carry 30 lbs. with us due to being on a small plane for transport. Plus we had to carry all of our own luggage ourselves. We were able to fit so much into this bag, then put it on our backs to carry, which left us hands-free to maneuver getting in and out of boats and climbing on rocks. The inside is fairly roomy. There are several zippered pockets, one end is specially built for carrying shoes, and there is an extra See full review