Felcloth originally dropped off demons in Azshara, Blasted Lands, Dire Maul, Felwood, and Winterspring.
However, with the extensive zone changes the Cataclysm brought, the only remaining sources now appear to be Dire Maul, the misty grells in northwest Swamp of Sorrows, the Infernals west of the Dark Portal in Blasted Lands, and the two pieces of cloth Vi'el <Exotic Reagent Merchant>, located at the bottom of Frostwhisper Gorge sells, which are on a limited supply timer (45 min or longer).
2020
Vi'el <Exotic Reagent Merchant>, located at the bottom of Frostwhisper Gorge sells, which are on a limited supply timer (45 min or longer).
