We recently returned from a two week African Safari and gorilla trek . Luggage requirements were specific and strict. Our itinerary included two long international flights and three short commutes on 12 seater planes. . We traveled with the wingman and matching 20 inch carryon.  Due to excellent design and numerous pockets, we never checked luggage and they both easily fit in the overhead compartments. The wingman easily converts to a backpack. . Great purchase!!!