For us it was the best price / performance ratio to the Backpacks for safe flight pack. The flight to Australia and back they have survived without problems and without damage, so that surely even more flights with the sacks are possible. A star deduction is available for the "String", with which one is to close the bag. This is it absolutely useless, because far too thin. We have the bag up a bit to rotate and then sealed with strong cable ties, so all was well secured.
