Pack what you want and forget bag check, even when flying internationally — the ZDX International 21” Carry-On Expandable Spinner fits everything. This classy global carry-on fits easily in most international airlines’ overhead bins while delivering 2.5” of expandable packing room for all your essentials, and our exterior-mounted Outsider handle keeps your packing surface flat and your clothes crisp and neat. With travel-smart advantages like external phone charging and quick access to checkpoint essentials, it’s among our best expandable carry-on luggage for the modern international voyager.