Cashmere wool comes from cashmere goats living in an extremely cold climate on the high plateaus of the Gobi desert stretching between China, Mongolia, Pakistan and Afghanistan. The goats have an extremely warm and soft undercoat that protects them during the winter. They walk freely and are taken care of by local herders, or live on farms and are taken care of by farmers. In the spring, when the goats start to shed their winter coat, they are combed or trimmed by hand to extract the downy undercoat. The undercoat is washed and then sent to factories to be spun into yarn. It takes about two to four years for a goat to produce enough wool to knit a cashmere sweater.