I purchased two of these in September of last year and wore each of them about twice. I no longer need them as I can now wear regular pajamas. They are size S, and please check the images for size details. I have lost the key-like item for opening the zipper for one of them. However, I still have one (two pieces), so I don't think it will be a problem. I will fold them to fit in the smallest possible box for shipping. Please understand that there may be some wrinkles. They have been washed. These are used items, so please refrain from purchasing if you are concerned.