Made it from US to Italy, over MANY cobblestones, on trains, planes, taxis, walking through cities, bumpy sidewalks/roads. Held up nice. It fit perfectly in the carry-on above head storage on both United domestic and United international flights. Fit on the Italian trains overhead storage too. Also, using bagail (packing storage cubes) we actually fit clothes for 9 day trip - two pants, two long skirts/dresses, one shoes (wore other pair), several shirts, scarves/underwear/socks, belts, jewelry - and just kept our toiletries in the daypack. We even had a little room for overseas purchases. There is a card inside about how to do the locks, but you can find info online easily as well. I can tell dirt/dust will cling to the outside easily just because it seems to be a static-prone material. Easy wipe down with a wet cloth though. It came with a light white cloth to cover the luggage when not being used.