I have seen the Osprey Manta 30 and probably will go with that pack, but wanted to see if anyone has suggestions. I prefer to have a pack with a similar hard frame stay to keep the pack off my back. Obviously, I need a fairly good-sized option because no room for a bike frame pack. Any advice is appreciated. Thanks!
Well, they're not pretty, but, if you have a screwy frame, just make some frame bags like I did.
http://www.bikepacking.net/individual_setups/just-something-i-stitched-together/