For summer tailored costumes it will be unequalled. "Toile Marocain," is a quite new fabric neither silk nor wool, but a special mixture of silk and goat's wool, that resembles the coarse stuff the native Arabs use in making their great burnouse—a hooded cape—and it comes in plain colors, particularly elephant gray, adapted to tailored costumes; and it is produced in chinè weaves with a Toile de Jouy effect, for little jackets and waistcoats.
Source: wiktionary