In the "old" days when the method was common the maker did sew the upper and lining leather through the insole. They had to sew it because the didn't had cement that could hold it together. I don't know how Maftei do it but it is sure a great workman ship. Accept an answer from a non professional. Yes, they do sew the upper and lining through the insole. I've been told that this is good for the stability and of course it is in the tradition of skillful workmanship. Here is a another example from Lattanzi: holzgenagelt in combination with a elaborate welt.