Basing itself on all the years of experience it has acquired, while at the same time constantly investing in research and new technology, the Ermenegildo Zegna wool mill has concentrated mainly on the production of high quality wool, cashmere and mohair fabrics. In other words, the best there could possibly be in the world in terms of noble fibers. Fabrics differ in terms of the raw materials used, naturally, and whether they are worsten or woolen.