This editor uses it for sartorial purposes. While I certainly at least check in one (or three) large bags when I travel, my foldable carry-on garment bag is where I store all of my most important ...
Since the size of luggage you'll need will depend on your specific travel plans ... has options for under-seat bags (rolling and not), toiletry bags, backpacks, foldable duffels, garment bags ...
The duffle bag measures 16.6 inches wide and 11.8 inches tall but has the ability to expand up to 17 inches tall thanks to a foldable zippered ... not only be used as a travel bag, but also ...