This is a navy dress from Familiar. I have worn it about 10 times. It has been dry-cleaned, but as a precaution for the entrance exam, I removed the tag after cleaning, folded it, and carried it with me for a day. Therefore, please understand that there is no proof of dry cleaning. I think it can be worn in a wide range of situations, such as by those attending classes, those preparing for entrance exams, entrance ceremonies, and graduation ceremonies. Size 100 Material: Outer: 100% wool Collar: 100% cotton Lining: 100% polyester