Lily Pulitzer Skirt with shorts underneath

Super cute Lily Pulitzer Skirt with shorts underneath. The tag says a 00 but I think it’s a little bigger than that? I’m a 24 and it’s got some room on me. It’s Pre owned but good condition. Except it’s missing the button “ as seen in pics” but it is completely functional and you can’t even notice as seen in pics. I don’t have the button.