This is Goodnites from Kimberly-Clark sold in South Korea.
As you see below, they have velcros on both side like Huggies Slip-on!!
Isn't it cuter than US one?

　　This is for UNISEX, no boy/girl edition.
XL sized Goodnites doesn't exist in Korea. M and L are available. BUT this Korean L is for 29-44kg. It's enough big,right? (US XL is for 27-57kg).
　　I think actual size is not smaller than US goodnites. They are big and stretchy enough. This difference of the weight range may be because of velcro side.
　　Unfortunately I don't have American Goodnites now so I can't compare. At least, this Korean Goodnites fits my 32" waist.

Anyway, I would say this is awesome product in the world. Absolutely.