There are some definite advantages to wearing a petticoat. A petticoat pushes your dress up and out. Therefore it can give you more freedom of movement.
What petticoat to wear with your dress?
Should your dress be slightly too long, having a single hoop can raise your dress 1/4 of an inch, wearing a double hoop can raise it up to 1 inch, which can save on alterations to the dress.
If your dress has a train, a train petticoat will keep it in place.
