suitcase

A suitcase is the rigid case, usually on small wheels, that you pack clothes into for a journey. Pack a suitcase, a hard suitcase, drag the suitcase.

Modern ones have four spinner wheels and a telescopic handle; hard-shell and soft-shell are the two families. Cabin bag or carry-on is the size allowed on board, and hold luggage goes underneath. Note that the name comes from a case sized to hold a folded suit — one suit, laid flat — which is exactly what the original object was for, and nothing like what anybody now puts in one.