I used this and several other Eagle Creek packing cubes and a 18" folder to organize my 20 inch carry on, which was all that I was taking for a week long trip to Brazil. I was amazed at how much stuff I could get into my tiny suitcase, and could not have taken that many clothes without the packing cubes and folder. It also helped to keep me organized during the trip, and made it easy to find things. I highly recommend the Eagle Creek packing cubes and folders.