Took the carry-on to Chicago on the Greyhound bus.  It rained almost the whole weekend and l pulled it behind me through hours of rain and numerous puddles.  This luggage performed very well.  A very small amount of moisture did seep through the wheel joints so next rainy trip I'll avoid puddles and maybe consider applying some type of sealant on the joints.  The luggage didn't get a scratch even with rough handling.