From this thread.
I had a cut on a pair of St. Crispins. When they came back from a recraft it looked invisible. There weren't any stitches, but it looked as if it was mended together somehow and appeared to be only like a deep crease. They replaced the linings in the shoes as well so maybe they cemented a patch on the inside to keep it together. Couldn't be sure, but I sure was happy with the result.