This is a long-sleeved blouse with a retro pattern. I don't think it has been used much. There are no tags, and the fabric composition is unknown, but it appears to be synthetic fiber. It has a self-fabric ribbon at the waist. (Sewn to the back, so it cannot be removed) The ribbon can be used to adjust the silhouette. It is wrinkle-resistant, lightweight, and can be worn loosely. Flat measurements: Length: 54 cm (from the top of the back collar) Shoulder width: 36.5 cm Sleeve length: 59 cm Width: 50 cm (between the armpit seams) *Also listed on other sites. Please comment before purchasing to check stock!