The size is marked as M because I'm unsure of the exact size. The waist is elastic. I've only worn it once, so it's in good condition, but please refrain from purchasing if you are concerned about any creases from being folded. Waist width (side to side): 30cm Waist: 65cm Length (front): 41.5cm Length (back): 46.5cm Hem: 46cm Please note that these measurements are approximate.