The Wheel of Time - The Call of the Horn
Fancloth is a material that distorts transmitted and reflected light in a way that makes it very difficult to see. Warders’ cloaks are made of fancloth. It is manufactured with a ter’angreal in the White Tower. In the Age of Legends fancloth was considered stylish. During the War of Power soldiers wore it. “The Watcher” covers himself completely with fancloth so he cannot be seen.