But, only the Changthangi breed found in Ladakh and Baltistan (Kashmir) produce the rare Pashmina fibre. With an average fibre diameter between 12.3-13 μm its fineness is comparable with Vicuña wool (12-14 μm), which is the finest and currently the most expensive wool in the world. Travellers Empire Manufacturer in Woolen Wears as Retailer in Chennai Also Shop @ Okkiyampet OMR.