As its name says, a unique, absolutely natural, uncompromising skin. With a mixed vegetable processing, it has all the characteristics of lived that are deliberately not hidden but, on the contrary, emphasized: scars, scratches, insect bites and wrinkles. Unica is the result of an innovative mixed mineral and vegetable tanning system, that produces a compact effect similar to that of the cuoietto, this means with an important and fat touch but at the same time smooth and pleasant. The colour range is absolutely natural. Produced on bulls of European origin, it has a thickness of 1.1-1.3 mm. The size of each skin is about 5 sqm.