It seems like this particular model of turnshoes was pretty popular in medieval Europe. This type of turnshoes are typical for western Europe, but are not uncommon to the kingdoms on the Balkans as well. We have a couple of frescoes and murals depicting this exact type of shoes. Here you can see two pairs of the same model. The female model has only one leather sole, while the male version has 2 layers of leather soles. Both pairs are made of a sole(5mm thick ) and upper part(2mm). They are hand-sewn with waxed thread.
And here is the male pair: