Most likely a Black and white domestic shorthair.
He's never stated the breed in interviews or anything but there are pictures and by the looks of it, it's a domestic shorthair or American shorthair. Hope this helped! :)
His cat is named Dusty.yes he has a cat called Molly
cat
cat
type in face time harry styles
harry styles has a bunch of favorite things his favorite color is blue, he loves cat, etc. :)
tabby
His cat is named Dusty.yes he has a cat called Molly
cat
Grey,
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Dusty
1 cat
A cat that what I herd
A cat
His cat is named Dusty.yes he has a cat called Molly
type in face time harry styles