To add a third sole to the mocs, it is usually best to wear the mocs for a while and break them in before adding the third sole. Then, prepare thread and needle as before when sewing on the first two soles.
Thread the needle through the seam hole in the heel from the inside.
Loop the needle around and through the first stitching hole in the sole.
Stitch the tail of the thread into the stitching to secure it as before.
Then, follow the pattern and holes used when stitching on the first two soles.
It may be more difficult to get the needle through the holes. A pair of needle nose pliers works well.
Simply stitch around the sole as before, and run the tail of the thread back under the stitches to secure it when completed.
