This is the best sports bra I've ever had. I wear a 42D normally and when I run I get these terrible rashes where the underwire from my bra rubs into my ribs. I tried cheap sports bras from Target, walmart, and other sporting goods stores with no relief. This bra is considered an "encapsulation" bra ... it's meant for hold the breasts very tightly to the chest and keeping them completely still. I really love it. I now have 3 of them.