Cup volume is a just a ratio, wire chart to follow. So we decrease the band size to 34, but we want to keep that volume the same. So, this is a 34DD. Notice that there is a bit of gap in the upper cup creasing from nipple line to the strap. This is our first indication that the band might still be a bit loose.
Check the back, notice how easy the powermesh pulls away from the body at the hook and eye. You really don't want it this loose. Promise.
Now here I have pulled the powermesh at the back so that the cups are pulled to the chest wall with the proper tension of powermesh around the body.
The breasts now fill the cups, the volume of the cups allow each breast to *rest* in the cup.