良質の皮 [ryoushitsu no kawa] or 'good quality skin' in Japanese.
Final Fantasy XII
Buy: - (sell: 384 gil)
Use: Burgeonet & Shield Armor & Ice Shield, Red Cap & Brigandine
Drop: Python, Serpent, Viper, Werewolf, Zaghnal
Steal: Serpent, Werewolf
Poach: Serpent, Werewolf, Zaghnal
Description: A hide with just the right combination of pliability and strength. Its pleasing hue only improves with use, making it suitable for crafting quality articles.
Grimoire of the Rift

Buy: - (sell: 450 gil)
Use: Cat Claws, Black Garb, Bracers
Reward: Wanted: Woodworker x3 (once)
Type: Skin, Rank: ★
Description: These hides have just the right balance of resilience and suppleness. Their price reflects this, however.
Final Fantasy Tactics S

Buy: - (sell: 200 gil)
Use: Leather Clothing
Obtain: Cend Region/Aquamarine Highroad lv30+, Duchy of Yug Nard/Riverside Grove lv30+, Federation of Nazan/Dustcloud Fields lv30+, Spirit Country Iisa/Banks of River Dana lv30+
Description: An uncommon skin
Category: Item