A taj is brimless hat worn by men and women in Muslim countries. The taj is usually curved or conical on top and comes from the Persian and Arabic words for crown. The taj was developed out of the ancient Mesopotamian tiaras. It is commonly considered a hat of notability and prestige, the taj is often made of rich fabrics, brocaded, and bejeweled. The majority of tajs, however, are made of simple leather or felt.