was our first thought. we then times reingepackt two down comforters and pillows, oddly enough, is there still room have been possible. It closes the bag by two parallel zip closures are closed in a slip. The system makes sense and works reasonably (had to help because even air came into the bag after vacuuming). The manufacturer advertises I think so that any vacuum cleaner is working, I can say that our vacuum cleaner has an oblique end what has worked well. The vacuum was created and the ceilings were rock hard.