Crisp White Double Layer Bell Sleeve Blouse. This has no labels. I would say it is a small. It’s also shorter than the normal blouse length. I am guessing that it is cotton. I did have to iron it. It is so classy, yet fun!! It’s a great white blouse to add to your wardrobe. Measurements Bottom of armhole across 19” Side to side at hem 20” Top of blouse to hem22”