XS but fits more like an S Crafted from a special textured clipdot fabric, this cool-girl striped collared shirtdress comes with a removable slip (lose the under layer to wear as a duster over jeans). Falls 45 1/2" from high point of shoulder (based on size M). Slip lining. Machine wash. OG listing: https://www.madewell.com/striped-midi-shirtdress-AL299.html