Sonia Rykiel Almost new 80% cotton, 20% silk The silk blend makes it comfortable to wear. The indicated size is 40, but the flat measurements suggest a size M. Flat measurement: width approx. 44cm (stretches to about 50cm) Length approx. 87cm Has a pocket on the left chest and two pockets at the waist. Includes a belt, but you can wear it as you like. It has a design that looks like two layers. It's a charming Sonia design with details like the color of the buttons and cuffs being the same color, and you can enjoy the buttons when you fold back the cuffs♪ The buttons can be undone, but they are decorative, so you can't take it off like a cardigan.