his carry on bag (a standard size carry-on btw)
Sadly there is no such thing as a standard size carry on .... each carrier has their own sizing and Ryanair and Wizz are amongst the most strict. It pays (literally) to read all the fine print on the baggage section of the website ... and you can't be sure that it will remain constant from one day to the next!
... and I did enjoy their AGB period ... because it seemed to be happening. Not so sure now.