I purchased two of these for my teenage sons. We needed a pack that would grow with them and not break the bank. These packs were perfect and I’m wondering where they have been all my life. It’s everything you need and nothing you don’t. Osprey is always great but these are just so smart and simple. The harness adjustment is so quick and easy. Initially I was lamenting that there was no front shove it pocket but turns out we didn’t really need it. The side mesh pockets are nice and large and the pack is big enough that everything else fits inside. I have a higher end Osprey for myself that I bought a few years ago and if I had to buy a pack now I would just get the Rook 65. Easily big enough for a week long trip if not longer. The built in rain cover was a great feature. Very light weight and comfortable; buckles/straps/ zippers durable. My boys are 5’7” 135lbs and 5’8” 115lbs and we got the medium for both and that was just right. Plenty of room to grow. Both boys were very complimentary of the pack.