Here I get into difficulty, because there is no little embroidered manufacturer's logo on the bra itself. To further complicate things, the label that tells you the model name, manufacturer, and size for the bra is faded beyond recognition. It (and I'm not sure if "It" is a manufacterer, model name, or size) begins with an "X". I know the care instructions, and the material, but I don't know who makes the bra or what it would be called. I also don't remember which cheap megastore stocked it on the rack. I have only two of these bras, and neither label is decipherable. They are beginning to show signs of wear, so in my hour of need I turn to the wilds of the internet.
With pictures.
Front:
Back:
Here is a close-up of the label:

Pardon the lens flare, but this was the best I could manage. I'm no catalog photographer. You can at least make out what I can: an X and space for maybe five letters after.
The material is 88% polyester and 12% spandex. The non-mesh parts are double-layered solid fabric, white on the exterior and black on the interior. The black exterior parts are mesh.
Please, if you recognize this bra, contact me in the comments. Any information that can lead to the purchase of another one of these sports bras would be greatly appreciated.