The best silks are produced in the provinces of Fars (Abadeh), Kermanshah, Arak and Zanjan. 2 people are involved in the making of Zanjan yarn, which are: Weaver yarn and Doz yarn. There would be no embroidery without the top of the gewah, which is often woven by women.
The characteristics of a good and suitable givah are that the top is woven from cotton thread, the sole and sole are made of buffalo leather, and the connection between the top and the sole is done by stitching.