Mine have 2 black tabs where the shock cord attaches and 2 white tabs where the shock cord is attched.
Edit: It is only one black tab and it appears to be at the wider end of the UQ. Hope this helps
There should be one black tab at the head end, If not, we goofed. Look for two small lines of stitching on the inside, this attaches the Torso Heater to the interior layer. The line of stitches closet to the end represents the head end. Hope this helps.