I am normally a 38DD and that did not fit in this bra, I had to order up to a 40DD, which fits nicely. The bra has wonderfully padded shoulder straps, and I find that the length does let out enough to use it as a racerback, but I don't feel like I need to do so. Meaning, I get enough support from wearing the bra in the normal configuration. I get good support in this bra when I jog, and I've also washed it numerous times and it holds up well. I like the color options, even though they rarely have them in my size (sad), and the material is shaping so there is definitely no uni-boob. On the flip side, this will make your boobs stick out about three feet in front of you. Even my regular bras don't push up and out the way this one does. It's not uncomfortable, it's just a little weird when you're not used to seeing them stick out so far. The material is okay, I wish it was a little softer. And I wish there was a gel wrapping around the underwire to make it a little less noticeable. It's not horrible, and I haven't chafed at all in it, but you definitely notice the underwire if you wear this for prolonged periods of time. I'm still searching for that perfect sports bra and while this is close, it's not quite there. But it's definitely my favorite one of the ones that I own. One of the reasons that I love it is that I don't get the shoulder pain that I do from most racerback bras from bounce and tug. This definitely decreases bounce to an unnoticeable level and I have no soreness or pain in my shoulders when I'm done with a workout.