I'm selling this because my second daughter didn't wear it. I purchased it online. It's new and unused. The length is 35cm. I think it's about a size M. The actual measurement is 53cm, but it stretches because of the elastic. The color is white. I'm not sure about the fabric because there's no tag. My high school-aged second daughter tried it on and said it felt itchy, so it might be a little itchy. Please be aware of this. There's a little bit of a stain? I'm not sure if it was there from the beginning or if my daughter put it there. Please understand. (See image 5) Would this be suitable for children who need it, for families who understand? I will ship it in a transparent bag with a pattern on one side, and I will compress it for shipping.