I measured myself first and ordered my size 38C. They fit well. I have cyst on my breasts and the underwire doesn't bother me at all. I love that there is no padding either. I've doubled checked to see if I am wearing a bra. They lift just the right amount. There is no weird shape to the cups. They are not granny style either. I think I found my perfect style. I live in southern california and haven't gotten that under boob sweat. I will be ordering more.