Soumak (Soumakh or Sumac): This refers both to the carpets made with the Soumak technique and the technique itself. Primarily practiced in the eastern Caucasus Mountains, this technique produces a flat-woven carpet, using weft wrapping in which wefts are pulled over then wrapped under a series of warps. The result is a herringbone like weave.

All About Rugs - Sumac - Kismet Fine Rugs