Question: what is crinoline used for?
Answer: A crinoline /krɪn. əl. ɪn/ is a stiff or structured petticoat designed to hold out a woman's skirt, popular at various times since the mid-19th century. Originally, crinoline described a stiff fabric made of horsehair ("crin") and cotton or linen which was used to make underskirts and as a dress lining.