Originally Posted by Efrem

Like limeyx a couple of posts up, I also use my Tom Bihn bag for a 17" PB. I like it so much as a backpack that I sometimes use it (minus "brain bag" and laptop) for hikes in the White Mountains when I don't need the big Gregory. The straps do a great job of getting weight down on the hips. You can get cheaper bags, but I don't know of a better price/performance mix.