I wear pampers cruisers size 7 diapers but I have to extend the tabs a little to fit my 36 inch adult male waist.
Most skinny adults, young kids, teenagers etc should easily fit into a pampers cruisers size 7 diapers.
There's also plenty of toddlers of age 3 to 4 years old that need a bigger diaper and size 7 Pampers Cruisers are perfect for them.
Or for kids who are too big for smaller baby diapers but are too small for adult diapers or youth diapers.
Some kids are just skinny and need diapers for daytime urinary incontinence or even bed wetting.
There's lots of kids or toddlers wearing Pampers size 7 cruisers diapers because they are selling a lot of them.