Karl Lagerfeld Striped Skirt - No Size Tag!

This black and white striped skirt from Karl Lagerfeld is in great preloved condition but it is missing the size tag. I am going to list as a small - please see measurements below. There is one online that is a 6 that measures larger than this one so this would be smaller than that. If you need any other measurements please let me know. Please note Posh doesn’t allow returns for fit. Zips on the side It is lined There are no holes or stains and this skirt is from a smoke free home. Laying flat the waist is approximately 14” side to side Center back length is approximately 23 1/2”