I took my measurements exactly as I was instructed to, to find my size and ordered that size, but when it arrived is was 2 inches too small around. I had a spare extender, so I have made it work, but I was very disappointed by this. Otherwise, this bra is very sturdy, well constructed, not flimsy at all. It gives very good support, but doesn't smush as much as some others do. The cup size was correct. I would recommend it for busty athletic women, but be aware that the around-measurement may be too small. Since Amazon is so good about returns, you might buy the size you think you are, and the two sizes bigger, then return the ones that don't fit. That's what I will do next time.