DIESEL Wrap around maxi grey long denim skirt 42

Bought from las vagus diesel store, still like new… read details. Tag has the authenticity code. Tag says size 42… I would say this fits more like a medium or large I’m going tk list this as a medium. I’m not sure on some of diesels sizes but fits like a medium. Can be worn high waisted and low waisted… it’s a adjustable .. any where from a size small to xl it would fit.