For domestic yaks, what is the primary value of the insulating fiber?

Answer

It is prized for its warmth and softness, especially the fine underwool

Beyond its essential function of insulating the yak from extreme cold in its native habitat, the fiber produced by domestic yaks is a valuable resource for humans. The material harvested from the animal is highly regarded, particularly for textile purposes. The inner component of the coat, known as the fine underwool, is sought after specifically because of its inherent qualities of warmth and softness, making it a prized commodity for crafting warm garments and textiles.

For domestic yaks, what is the primary value of the insulating fiber?
animalbodyFeaturecharacteristicyak