Raven's Armor of the Elves

Raven's Armor of the Elves is a studded black leather with some metal scales and one of the three versions of Raven's armor. This one is only obtainable if Geralt sided with the Scoia'tael.

It's obtained through the quests Armor and A Gnomish Device and with the help of Malcolm Stein, the dwarven blacksmith, in Chapter V.