I m very much used to the Space Bags for storage at home and for travelling. On my last purchase I've bought the ones with the new Rolling System. The idea sounds perfect but it just doesn't work when you are packing.Once you have your clothes inside the bag and seal it, the act of rolling it demands strenth and caution (as the plastic can easily blow). The air won't come out through the seals.At the end I cought myself leaving the bag partially open, rolling it (using my knees on the floor) and then sealing it. My wife said she wouldn't have the strenth to do it.These bags are real space savers but rolling system doesn't work.