I have been on a sports bra search for years and years and I have finally found one I am happy with. I usually wear a 42-44DDD bra and I ordered the 42F which fits perfectly. I could literally do jumping jacks. THIS IS THE FIRST TIME I HAVE EVER ONLY HAD TO WEAR ONE BRA!!! LADIES, YOU KNOW WHAT I'M TALKING ABOUT!! I even did a 10K in this thing with no problem. Yes, it's the ugliest thing you've ever seen but who cares?!