This is the Black Microstripe (or Wee Stripe - I didn't look closely at the tag) Cross My Heart Tank I tried on today. This one has circle mesh in the back. There is also a solid black version.
Cross My Heart Tank in Heathered Blurred Gray. This color has a circle mesh panel in the back.
One of the issues I had with the Cross My Heart is that it can become revealing if people have a birds-eye view of your cleavage. Also, the front will pop open if you cross your arms in front of you or lean over.