A really nice tiered chiffon Innocent World JSK. It's in okay condition, it has some tearing on the zipper seam that could be fixed easily. Couldn't find it anywhere on lolibrary so your guess is as good as mine! It has back shirring, and is lined with cotton! The straps are detachable in the back and you could move where the button was if you wanted to make them longer. Also has simple detachable waist ties. I took flat measurements, but it BARELY zips on the setting my dress form was on at, 86cm bust, 70cm waist. So smallish.

Bust: 39cm flat. Shirring adds another ~17cm of stretch. It's only quarter back, but the elastic itself is quite stretchy, so even though there's theoretically like 95cm, I really don't think it'd get used comfortably!
Waist: 31cm flat. Shirring adds about the same, ~17cm.