The ONU-22 is our most popular travel bag and with good reason. It's the perfect U. S. airline regulation carry-on size and combines style with streamlined easy-going looks. Custom in-line skate wheels and locking retractable handle provide optimum mobility Internal compression straps Two low profile external pockets Custom OGIO ID sleeve Multiple grab handles Airline regulation carry-on size with 3” expansion zipper (must be checked when expanded)