Shagreen Shagreen Shagreen is a type of rawhide consisting of rough untanned skin, historically from a horse's or onager's back, or from shark or ray. In modern times, shagreen is produced from the skins of commercially-farmed Asian sting rays. The word derives from the French "chagrin" and is related to Italian "zigrino" and Venetian "sagrin", derived from the Turkic "sağrı" / "çağrı" 'rump of a horse' or the prepared skin of this part. The roughness of its texture led to the French meaning of anxiety, vexation, embarrassment, or annoyance. Shagreen has an unusually rough and granular surface, and is sometimes used
Victimless Leather points mentioned above. As with most of the TC&A projects the artists are concerned with the relationship between humans and other living systems, both natural and scientific made or manipulated. The artists wanted to make a leather-like material using living tissue, and ended up making it in the shape of a stitchless jacket. The artists based the jacket on a biodegradable polymer, coated it with 3T3 mouse cells to form connective tissue and topped it up with human bone cells in order to create a stronger skin layer. To create the victimless leather, the team needed an artificial environment where