Cashmere is an expensive fiber, not only for its many amazing qualities (read more about cashmere characteristics here) but because it takes 3-4 goats to provide enough cashmere for one jumper.
Once a year, every spring, as the weather gets warmer, the goats start to shed their underhair and are combed by the nomadic herders. The combing process takes 30-40 min per goat and is a neccessary process for the wellbeing of the goats. If left uncombed they attract ticks and fleas which can cause infections and diseases.