The material is very quiet, although of course not as much as wool or fleece would be. It does get a bit noisier in very cold weather. But overall, it is a good choice for a hunting pack material with excellent toughness and is waterproof.
The picture of me with the pack on my back was done just to give an idea of the size of it. It was nearly empty, and not adjusted to properly ride on my back. But with a normal load and the straps properly adjusted, it does ride right down at my waist and puts weight on my hips. I am 6'3", so have a fairly long torso. The shoulder straps offer good adjustment so that it can fit most average body types well.
As to the stalker quiver, I use an Arrowmaster for all of my hunting. I love wearing that quiver with a pack because it rides right up tight against the pack and actually seems to lock in better with a pack than without.
Feel free to give me a call anytime with any questions.