This is a rare and highly desirable animal fiber. The vicuña is the high Alpine Andean cousin of the llama. It can not be domesticated. Incas only allowed royalty to wear clothing made from its fiber, which is very soft and warm. The vicuña has slow growing wool and for most of human/vicuña history, the animal was killed for its hair. Now apparently it is captured, the fiber is gathered, and the animal is released. It is doing better in numbers.