A well made Hill style backquiver, wide & flat, with medium weight leather that's broken in and flexible, with a rolled top edge, is a joy to use in the woods if you know how to do it right.
Last weekend I hunted with Rik, in some horribly dense mahogany thickets...he with his bowquiver and backpack, me with my backquiver and fannypack. Needless to say, he is using a different pack system next time as he was constantly making noise getting through the brush. When I go through brush, the quiver slides to my side, and I can duck down pretty low and quiet, and there's nothing on my bow to hang up on brush.
I see backquivers made out of too soft leather, for quietness, but they collapse too much for me to getting arrows in and out. Bridle leather is very easy to break in like a baseball glove, super flexible, and won't stiffen in the cold weather like latigo, yet is about 8 - 10 oz which gives lots of durability and broadhead protection. A quiver that is too small in diameter required more of a straight-out movement to remove an arrow, requiring long arms and a big movement. A large quiver will flatten, making it easier to remove an arrow diagonally out of the quiver for a lower profile arm movement. A quiver that's not too stiff will allow you to bump the bottom with your hand/elbow to make reaching arrows easier.