I used our bag at Hershey Park last week and have a few comments. The velcro closing pockets on the "strap" do not close very well; I was afraid to put anything in them. The top velcro closing pocket on the "bag" side has a zipped pocket inside, but it's still not very secure....I wish it was on the side that is next to your back. We put a water bottle in the water bottle holder and two more bottles in this top velcro closing pocket. They were frozen when we left home and stayed cold/partially frozen all day. However, it made it a little heavy. Even with all the water in it, it wasn't uncomfortable, but it definitely is not big enough for "pooh" sized people or anyone over about 5' 10". We will probably still use it at Disney, but we will use it for some snacks and ponchos instead of water to make it lighter.