Thanks for the info here. I'm also a bit confused on their branding. I just purchased the 'international' version (22” height x 14” width x 7” depth), which is fine for flying on CX (22x14x9) and is a little smaller than the domestic US version but different than the one by the OP stated here.

Did Rimowa change their dimensions? But I noticed they still have the IATA Cabin multiwheel and the regular Cabin multiwheel, not really sure what the intended market is.