The fabric uses silk. Please check the photos of the tag. Suitable for parties, and also for everyday wear by pairing it with a cardigan or blouse. There is no size notation. The waist is elastic. I have measured it, so please check the size. Zipper on the side. Lined. The side with the decorative buttons is the back. ⚫︎Flat Measurement⚫︎ Total length: Approximately 92cm (from the top of the shoulder) Body width: Approximately 40cm Waist width: Approximately 34cm ◎This is a personal inspection and measurement. Please understand that there may be oversights or errors. Shipping will be the cheapest method. Please be aware of any folding wrinkles on the product. Folding wrinkles can be removed by hanging the item on a hanger and applying steam from an iron or steamer. Instant purchase is OK! Thank you.