Durotan's Battle Harness

Durotan&#39;s Battle Harness is a plate chestpiece presumably worn by Durotan, Chieftain of the Frostwolf Clan, and - according to its tooltip - ten earlier generations of Frostwolf chieftains.

Source
Durotan's Battle Harness drops from Captain Skarloc in the Escape from Durnholde Keep instance of Caverns of Time.