I am 5' 4", a size 8-10 (size 29/30), and my figure is apple-ish. i can't pull off peplum tops because they are too tight for my shape and they flare out at an unflattering spot. all of those "rules" go out the window with this tankini.

first, swimsuits are supposed to be tight, so that problem is eliminated right away.
second, the flare-out is perfect for women that want to hide their tummies. i don't like how swimsuits are generally tight in the tummy - that's the area that i'd like to hide t