This is magnificent. Truly spectacular fabric, detail and fit.
It's one size and would look great on anything from a UK10 - UK16. Please note that the cut is deliberately very oversized so if you're a 'closely fitted' type of person then this is not the piece for you.
You can wear it loose or belt it in with a wide belt.
Could also be worn as a dress if you're spending the evening outside (you'd roast indoors.. it's warm!)
Sits mid shin in length.
I would say it's 100% cotton.
In excellent condition.