A hoop skirt was a popular fashion trend in the 19th century, but it had different names depending on the part of the world it was worn. In England, it was called a crinoline, while in France, it was called a cage crinoline or simply a cage. In Germany, it was referred to as a Reifrock, while in the United States, it was known as a hoop petticoat or a wire skirt. The hoop skirt was designed with a series of stiffeners or hoops made from whalebone, steel, or even bamboo, which gave the skirt its signature shape. Although it has fallen out of fashion, the hoop skirt remains an iconic style element of the 19th century.