I have been trying out my new H2 pack. It does have the torso adjustment feature and it will hold a full size hunting rifle easily. The hip belt is a bit odd as it is padded on the back side enough to cover the kidney area but is just a 1" nylon strap for the remainder. The bag has a nice sized zip compartment on it's top cover that would be good for things the size of binoculars or lunch. The main section is a deep (and fairly narrow) bag with compression straps. It should be OK for a rain parka, gloves, game bags, etc., and it has a compartment for a hydration bladder (not included).
I have not made up my mind yet as to whether I really like it or not, but I think it will work for it's intended purpose. I doubt that the really large fellows would like how the pack fits, but the "average Joe" should find the fit to be acceptable, and it is well made