The sole for moccasins can be, both internal fastening, and external. The sole for moccasins is fixed as follows, first glued, and then stitched around the perimeter. I use nairit glue for shoes. It is moisture resistant. It is also very convenient to lubricate the seams to protect against moisture penetration. When gluing the sole, the skin needs to be tightened so that there are no wrinkles.
To stitch is a waxed thread. Wax protects the yarn from moisture and increases its durability in the process of using shoes. It is also easier to sew with a waxed thread, it does not make it difficult to slide while pulling the thread through the skin.