NWOT FireFly Microfleece Pants/Bottoms, Youth/Child Size Medium.
All measurements taken while laid flat and unstretched.
Waist: 11.5 inches
Inseam: 25 inches
I believe this was given to me as a present YEARS ago, I remember removing the tags and size label/sticker but I've never worn or used it, I've washed it before taking the above pictures but the kind of fleece the pants are made out of tend to attract lint (not too much, but enough to make it still look "dirty".)
August 7, 2020: still available for sale, do not hesitate to message me with questions! :)