Black Square rucksacks, bags and accessories are made with a full-grain Tuscan hide tanned using plant tannins. Its uneven look is the result of an original handcrafted process, the washing, which preserves all the warmth and allure of genuine, uncoated leather. After tanning, expert hands place the hide in large vats filled with water without adding chemical substances. The leather is then dried in drums and then laid out so that is fibres relax. Thanks to the experience of patient master tanners, in this way the hide acquires those differences in shades of colour, grain and softness that make every piece of the Black Square collection unique and exclusive.