Gianni Versace white Sleeveless Dress

In good condition except some marks at the back on the neck. Just dry cleaned and they couldn’t get them out. Have posted a picture. A small mark on the front bottom but hardly noticeable. Size 42. Made in Italy. Zipper at the back to get in and off easier. Not able to tell what material it is as tag is very faint. Does have stretch to it though. Thank you for looking!