The Black Square collection is made with full-grain Tuscan leather, tanned with vegetable tannins. Its non-homogeneous appearance is the result of an original craftsmanship, washing, which retains all the warmth and charm of natural, uncovered leather. After tanning, skilled hands place the hides in large tubs full of water, without adding chemicals. The leather is then dried in the drums and finally stretched out, so that its fibers are released. Thanks to the experience of patient master tanners, the leather thus acquires those differences in color tone, grain and softness, which make each piece of the Black Square collection unique and exclusive.