I read all the reviews and went for it anyway.  Like others said, it was a specific band and cup size (34D) but it happened to be a size that fit me well enough.  I never buy non-underwire bras, especially not for working out, but this really does its job.  I do have to complain though, that the zipper really doesn't stick at the top.  Most of the time, there is just a little gap.  But once I was working out, and it totally unzipped on me.  I will definitely still use it, even with 3 stars it is still my favorite sports bra (goes to show you how bad some others are, but it isn't perfect.  Oh, and I bought a front close to make nursing my son easier, and it is okay for that.  I was hoping to not have to unzip it all the way, but the zipper pops open and everything pops out, so it's really not much different than pulling up a back close bra.