What is felting or Namad mali:
Namad is a traditional type of underlay that is made of wool and literally means a thick fabric that is rubbed from wool. The art or industry of Namad mali is one of the oldest handicrafts in Iran.
Namad is the simplest type of flooring and its construction does not require any special device.
In felting (Namad mali), the natural property of wool is used, which is the entanglement of its fibers due to moisture and pressure.