Safian – cienka i miękka, wyprawiona garbnikami roślinnymi i barwiona skóra koźla lub barania, używana do oprawiania książek, w produkcji obuwia lub obić mebli itp. Etymologię wyrazu można wywodzić od ros.: safiàn, tur.: sachtijan, perskiego: sächtijān, w którym sächt oznacza mocny.
https://pl.wikipedia.org/wiki/Safian

Morocco leather (also known as Levant, the French Maroquin, or German Saffian from Safi, a Moroccan town famous for leather) is a soft, pliable form of leather widely used for gloves and the uppers of ladies' shoes and men's low cut shoes, but traditionally associated with bookbindings, wallets, linings for fine luggage, and the like.
https://en.wikipedia.org/wiki/Morocco_leather

Goatskin refers to the skin of a goat, which by long term usage, is denoted by the term Morocco leather.
https://en.wikipedia.org/wiki/Goatskin_(material)


Goat leather is a type of leather made from the hide of goats. It is strong, durable, flexible, and can last for years with proper maintenance and care. Goat leather is often used in personal accessories and smaller leather goods, primarily due to the smaller size of the goat animal, compared to larger bovine leathers.
https://www.libertyleathergoods.com/goat-leather/