I am the second owner. I've only tried this on over a shirt.
Here are the measurements and notes from the previous listing:

"Purchased from Souffle Song about a year ago with plans for a summer coordinate, but I haven't worn it in the past year.
Purchased in the 'Red' colour way however it's more of a darker pink.

Condition: NWT - Has been tried on, tags are attached.
Please be warned the apron has some discolouration, it arrived to me in this state and I have tried to wash it, however it's still quite discoloured.

Features: Partial Back Shirring with corset style lacing, Side Zipper

JSK Measurements
The JSK was made to fit the following measurements.
I'm not responsible for any sizing discrepancies.

Bust: 110 cm
Waist: 98 cm
Length:98 cm

The bust and waist can be adjusted as per the corset style lacing, I believe the JSK may stretch up to 115cm for the bust and 100-ish cm for the waist.

The apron was not adjusted to fit the measurements above, I believe Souffle Song used the apron from their regular sizes as the waist ties will not tie a pretty bow on the JSK if your waist is at 98cm.
Apron fits more like 90cm at most if you want to tie a bow."

fawny's notes: The measurements are accurate, and this JSK is made for a larger bust! The size is perfect for a plus size person, with the shoulder straps long enough to fit quite comfortably.