Tried a different approach with this one.
Full wrap belt with floating stay pockets. Shoulder straps attached directly on frame too. Adjustable torso length.
The canister is held by two straps connected directly to the stays at the lower point. Sideways slippage is controlled by the two bottle pockets and their straps. Couldn’t find my UL bottles for the pic!
I would imagine it simple to substitute the bear can with a dry bag, Ursack, packraft, etc.
Probably a 35 L upper pack, made with X21.
Just about 18oz. Doing a roll top instead of the pictured cinch would likely add an oz.
Loaded with 25lbs it transferred as much weight to the hips as one would want. I’d expect reasonable comfort up to 35lbs (if the thing holds up!)
Going to the Sierra this summer!