A women's undergarment is called a Petticoat, a designed to slightly stiff to inflate skirts or the dress. It was 1500s when petticoat used for women fashion to enhance the privacy when pants is not known at that time for women. Petticoats commonly found at stores in bridal fashions. It made from stiff material like the soft fabrics. Women usually wear at least three Petticoats and there are eras are designed to be invisible, hidden wear of women. But in other eras Petticoat designed for visible using the open-fronted gown, dress or skirt as decorated as gowns. Petticoats were designed to give shape to the body. And now for the modern, Petticoats where worn for formal wear.