Lolita Petticoats are always worn under lolita OP, JSK, and SK to give you more volume underneath them.

You can have a more puffy, gorgeous look by wearing a petticoat. While Lolita Bloomers are worn for modest or warmth.

Underskirts are also available in this collection.
Underskirts are used to add details or extra length to the hem of your dress or skirt. Some underskirts can even wear alone.