Red dragonhide

Red dragonhide is a 100% drop from red dragons when they die. If it is brought to a tanner, along with 20 coins, it can be tanned into red dragonleather. A tanner can be found in Al-Kharid, the Ranging Guild, Canifis, and the Crafting Guild. Members can then craft the red dragonleather into red dragonhide armour. At Canifis it can be tanned for 45 coins.

Trivia
Red dragon hide is current the most Expensive hide even though black dragonhide is dropped by a higher level dragon this is because red dragons are less commonly fought than the other 3 chromatic dragons because of their drops and the areas they are placed