There is a system that seems to focus everything on “formal sustainability” and there are those who, like the Italian tannery, represent an example of “substantial sustainability.” These were the words of President Fabrizio Nuti at the last UNIC assembly, who reiterated how there are not many industries whose raw material is derived from a waste from another supply chain. Italian tanners, moreover, have gone further by putting in place “a recycling and reuse chain of their production waste in tanneries that has no equal, treating and reusing it for the cosmetics industry, the food industry, agriculture and construction. The result is a circularity rate of more than 99 percent.”