From Cigar Aficionado Magazine,  "Cappellificio Cervo is located in Sagliano Micca, a small idyllic village about 20 minutes north of Biella, where the finest woolen mills produce the most luxurious woven cloth in the world.    The factory is located at the foot of the Alps, and a crystal-clear mountain river, the Cervo, runs through the factory, supplying it with water for processing as well as hydroelectric power. The water is particularly pure and exceptionally soft, perfect for producing felt and wool.....read the full article here...

https://www.cigaraficionado.com/article/the-worlds-best-hats-7536