Reader Eliza was kind enough to send in photos of the new Pure Balance tank. It's showing up in strategic partner stores but not the regular stores yet. It's made of regular luon. I like the thicker straps but I think this tank will show a lot of cleavage if you are busty. I am very curious to see this modeled on some educators.
The style reminds me of the Sequence Tank:
Sequence tank - made of luon top and circle mesh bottom - very cleavage-tastic!