Lineacuoio uses exclusively a natural, ancient, and refined craftsmanship, using tannin, an extract derived from wood. Processing can last over two months: the leather is immersed in tannin baths, day after day it penetrates into the structure of the leather, arresting the aging process and thus ensuring the gradual transformation of the hide leather (pelle) into sole leather (cuoio). The finishing is done using procedures that allow the sole leather to be coloured, while maintaining the leather’s natural qualities, and always respecting the environment. The final product therefore boasts extraordinary features of softness, warmth, strength, and the ability to absorb the traces of time, turning them into “living character”, qualities of a true vegetable tanned sole leather through the process of slowly tanning in tannin baths.