Fabric: Petticoats are usually made of lightweight, semi-stiff fabrics such as cotton, polyester, or tulle. These fabrics help to hold the shape of the petticoat while remaining comfortable to wear.

Structure: The petticoat is often gathered or pleated at the waistband, creating fullness. Some petticoats have multiple layers of fabric to achieve a fuller look, while others may have hoops or crinoline to provide structure and keep the skirt away from the legs.

Length: The length of a petticoat can vary depending on the desired style. They can range from just below the knee to full-length, depending on the length of the skirt or dress they are meant to be worn under.

Waistband: Petticoats typically have an elastic waistband for easy wear and a comfortable fit. Some may have a drawstring or hook-and-eye closure for adjustability.

Decoration: While the main purpose of a petticoat is functional, they can also be decorative. Lace, ruffles, and ribbon trim are common embellishments, especially if the petticoat is meant to be seen under a skirt or dress with a sheer or lace overlay.

Colors: Petticoats come in a variety of colors, with white and black being common choices. However, they can also be found in pastel shades, bright colors, or even patterns depending on the intended use and personal style.