Answer and Explanation:
Although you did not put the passage to which the question refers, we can say that William of Rubruck was describing a traditional Mongolian society. This is because Rubruck's text highlights the life of Mongolian shepherds in a nomadic life system, which was the system adopted by the oldest and most archaic Mongolian society. The author also describes the traditional clothes used by society, which are very different from the clothes used today, with the influence of Western beauty standards.