Vicunas are the smallest of the camelids. They are wild animals and live in the altiplano in Peru, Bolivia, Chile and Argentina. They cannot be domesticated like lamas and alpacas.
Almost decimated in the 60's because of their coats, this is now a protected species since 1974 and the population is estimated at 125,000.
They produce the finest wool in the world and can only be shorn every three years. This wool is even much softer than cachemire. Price is sky high (sweaters are €3,000+, men suits €20,000). You may try to catch them, good luck! :)