Found this on another site
This photo allows one to extrapolate how far down they would hang without the bras and any other constraining clothes. Looks to be at least down to the thigh tops, maybe slightly beyond.
I typically view my preferred size criteria to be that they hang down to at least the navel position - but she is So wonderfully in the realm of Beyond...
I maintain a deep respect, for multiple reasons/factors.
-D'Artagnian