I'm about ready to start the final sewing of my Ray-Way quilt. I'm also making the stuff sack. According to Ray's directions, you are supposed to put the stuff sack in your pack vertically, then stuff the quilt, twist the extension portions of the stuff sack a couple of times, then stuff the extension down inside the bag pulling the drawcord closed. If you need more room in your pack, you can compress the sack more snugly, otherwise let the sack "pillow" out if you don't need the space. The sack should be in the bottom of your pack, sitting on top of heavy food not needed for the day. The stuff sack is sil-nylon. I quote " One does not stuff the quilt into this type of stowbag, then try to jam it into a small backpack." HTH...