Ordered XXL .......I recently got breast augmentation augmentation and this piece was perfect. Its not squishing my breast ( which if you did have breast augmentation it should not be smashing them) and has good support. The back part is cute even though you can see my rolls its is not because this is tight, its just my extra love back there. I ordered and XXL and the reasons I ordered it was because the DR gave me a size 44 sports bra I compared the size on the size chart on here.