Then peel off the piece very carefully. Make sure to keep any teensy-weensy wrinkles that formed as part of the shaping process.
I even marked the edge of the bow (which I did not mean to do!)
For the back band, you should stretch the band until the fabric lays flat. If I’d had a foam core board, I would have pinned this band to that, but I am at the Saskatchewan Stitches Conference right now (held at a monastery) and don’t have my foam core board with me. it’s not likely the monks would have any foam core lying about either!
When you finish tracing, let it go. The band will crinkle up back to its elasticized size, but don’t worry – all will be well when we peel it off. It will go back to its original size.
Now comes the fun part! Transfer the traced outline to paper! Stick the plastic to a piece of paper starting at the centre and working out, smoothing the plastic as you go. Don’t get rid of those tiny shaping wrinkles but rather curve the paper to fit the plastic.
Once you have the parts on paper, true the seam lines and add seam allowances. That’s how you Press & Peel a new bra!