Cotton

Cotton is not generally used as pile material in Moroccan Amazigh rugs, that role is almost exclusively wool's. Cotton appears as the warp foundation in many high-quality flatweave and pile-knotted pieces. A cotton warp is dimensionally more stable than a wool warp, it stretches less with humidity changes and produces a flatter, more even textile over time.

The use of a cotton warp in a piece made in a region where cotton must be purchased (rather than grown locally) indicates investment in quality. In some cases, cotton warp material was traded in from coastal or lowland areas to mountain weaving communities.