Re: Male clothing on female sims causes breast reduction/Binder issues
@Crayola4321 I just wanted to mention that the binder is actually under Tanks, not bras, and is available for both masculine and feminine frames. It doesn't appear to have any effect on breast size for either type of frame though, whether the frame matches the gender or not. So perhaps the intent is more "this sim wears a binder and has breast size X" rather than "with this outfit, this sim is currently wearing a binder, which reduces their default X breast size by percent Y."
I'm not trying to make a statement on what the correct or most accurately representative design choice would be, only an observation.