So many times when you go to Africa, Iceland or other parts of the world where the tour flies on small planes it is necessary to dump from your regular bag to a smaller lightweight bag and leave the heavy bag at the hotel for your return. Now as a matter of course I pack a nylon duffle just in case. (They never tell you this info in the travel instructions but wait till you get there) This is a very large, well made bag (Samsonite quality) and will be very useful for bringing back dirty clothes, gifts or small plane hops.