I ordered the Ariel 55 way back in 2009 and since then it's been deep into wilderness areas, stuffed into the overhead compartment on my way to foreign countries, and lugged around with teaching supplies for my environmental education jobs. It's a fantastic pack!! I just recently sent it into Osprey to have one of the metal frame pieces replaced, and they also patched two holes on the side pockets! Now my pack is ready to jump into another busy summer outside! I have broken the waist buckle several times, but that's an easy fix. The pack itself is also a smidgen too tall for my body, but that's my fault. Everything is easily adjustable, I love the pockets and straps, I've strapped all sorts of stuff to the outside of this pack!