A very soft wool or feather, such as piles, which grows at the end of goat's hair, is called "Fuzz". After cutting and spinning, it is used to weave fuzzy cloth. The under arm and breast wool of sheep are believed as fuzz by mistake.

Carpets made by these materials are more expensive, more soft and fine.

Fuzz has a classification like wool. The grades are 41 layers, 48 and 28 double layers.

A kind of fuzz is produced in Kashan (Iran) called "6 layers", which is equal to No. 28 double layers fuzz.