This is what I rely on for all of our air travel. We rarely check bags.. the Beis and IFly both hold a lot and fit in the overhead. I prefer the Calpak Backpack Duffle as my under the seat bag and that Parallele makeup bag is worth every penny! Stands upright, many organizing pockets and can pack standing up or on its side. LTKdayinmylife LTKmomlife LTKTravel