I bought this to run in after healing from my breast augmentation. I'm a 28-30 DDD-E. It's hard to pull a bra that's tight enough to contain my boobs over my head, and this seemed like the answer. It supports well (I bought a small, which arrived labeled a 32-dd), and is a nice quality. However, the zipper likes to undo on its own. I was jogging last night with my dog and BLAMMO! Bra goes flying open suddenly, and I'm free-boobin' in the neighborhood. Thankfully, being that it was 42 degrees, I had a shirt on over it. So I got to do up my bra in the middle of the street with my dog looking at me like I'm crazy. It looks like this will be a weightlifting only bra from now on. I have the fiona bra also, which closes in the back. That will be my go-to running bra from now on. I bought it in a 30DD so it would be really tight and compress my boobs so I don't damage the new goods. It's like being crushed by a boa constrictor, but it does the job.