Recently Amazon Japan has had stock issues with diapers, so we were unable to purchase the brand we typically do and ended up going with Moony.
If you ask me, that's a pretty funny name for diapers, especially considering that Ryu wears the pants type which can be pulled up and down easily.
But, that's not actually the wacky portion.
In Japan, it's pretty trendy to take a couple of English words and smash them together with katakana to get one word that means multiple things.
In this case, I was pretty surprised to find that they combined "soft" and "stretchy" in order to make a really great new katakana word.
As an added value, you may choose to use the diapers themselves as soundproofed barf bags!