Ah, the things Mr. Google knows.
Apparently some bra makers do sell DDDDs, others calling that an F or a G. They all seem to agree that DDD is the same as an E. And that DD exists.
I'd like to see a rating system for lengths of extended nipples, which interest me more than large breasts.
No instructions on that site for males undoing bras with one hand - this is something that must be learned by trial-and-error.
https://www.herroom.com/cup-size-com...ns,905,30.html