I emailed J Crew customer service for info on the skirt. Here is the reply I received:
Glad to inform you that we found information for the skirt you're looking for, which is attached to this email. It's the Chapelle Skirt, item 34486. The skirt is a 100% woven cotton ruffle skirt with 100% nylon trim. It is only available through our retail stores and I do not have information regarding the current price. The skirt was offered in sizes XS to XL. I hope this information is helpful to you in your search for the skirt.