Step 9:
Insert the zipper: Insert a zipper foot on your machine.
Take the exterior fabric with the vinyl attached and lay the long edge RST with the zipper teeth.
Baste in place using a ⅛” seam. If the zip pull is obstructing your stitch line, lift your machine foot & move the zipper pull(s) out of the way and carry on stitching.
Step 10:
Once basted, align the unfolded long raw edge of lining piece B with the basted zipper tape and vinyl piece. Also ensure the short edges of lining B and exterior B are aligned.
The right side of lining B be touching the wrong wide of the zip. Ensure your pressed folded edge is NOT the one sewn in to the zip – it should still be free.
Your zip should now be sandwiched between the outer and lining fabrics. Pin or clip the layers. Stitch in place using a ¼” seam allowance moving the zip pull(s) out of the way if they are obstructing your stitch line.
Optional: Finger press both the lining and exterior fabrics away from the zip.
Top stitch through all the layers with ¼” seam allowance.