Robe of a sage from the Grand Archives, stained quite deliberately with wax.
The scholars of the Grand Archives, sorcerers by craft, tend to their candles with a reverence that exceeds the simple burden of labor. They know dangers of the Archives' store of knowledge all too well.
The headgear associated with this armor, the Scholar's Shed Skin, actually exists within the game's files but is unobtainable by conventional means. Both pieces were presumably going to complement a set called the "Scholar Set".