Based on a pattern of a shoe from Marx-Etzel, Germany, this kind of shoe is called a ghillie by the Celts, or carbatina by the Romans. Shoes like this were worn by all kinds of people all over the ancient world, from Rome, to Greece, to Ireland, and were worn throughout the Iron Age and into the Viking and even Medieval Age.
The modern Irish dance shoe, ghillies, is based upon a similar design as well!
To make the shoe, print out the appropriate size (sizing chart provided for reference), and tape with the red lines together, then cut out the black lines--save the decorative lines inside, those are to represent the stamped designs on the shoe.
Cut out of a single piece of leather, and lace with a thin leather lace as shown on the cover.