Worn once for a short time and already washed. It's clean except for storage wrinkles, so I'm offering it for sale. I believe the material is cotton-polyester. It's not see-through. I can't find a size tag, but I think it's about M. Please consider the measurements below. Measurements are taken flat, by a layman, in cm: Shoulder width 33. It's a balloon sleeve, but the shoulder width is small, so it can be worn cutely. Body width 43. Side zipper included. Waist 42. Adjustable with a string. Length 115