Authentic product. Used sparingly, but there's a faint stain on the front (chest area?). It's not very noticeable, but... I tried stain removal, and the dry cleaner also tried to remove the stain. They said that doing more would damage the fabric, and that it's not noticeable when worn. I wore it, and I am 152cm tall, so I had the hem raised by only 5cm, which shouldn't change the length much. Sorry, I can't offer a discount.