I remember from some swift water search and rescue classes that women naturally have higher rate of survival compared to males. Boobs aren't always a bane. They increase the probability that a person will float chest side up.

There is a major flaw in this design, aside from being silly. If one really wanted to improve survivability, one would have the front of the bikini bottom inflate, not the bottom.

This just going to pop off leaving the wearer naked, with out a flotation device. Better wear the unfashionable PFD.