first got this in a small and the crotch was way too low - ordered the medium and it fits well, I typically wear a small or xsmall, but needed the medium for the height.  It's comfortable - I took the bra inserts out because they are too thick.  I swim indoors and this doesn't keep you as warm as a wet suit, but it keeps you warmer than a regular swimsuit, it's much easier to get on then something made from wet suit fabric.  I really like this suit.