Leg avenue, get serious with your petticoat sizing. I'm 5'9", 170 lbs, 30 inch waist. My costume size in the same brand is m/l. I'm in the middle of the suggested size range so this should fit great, right? No such luck. While there's plenty of fabric and this can stretch very large, the elastic is set on size 2 so muffin top is present. Maybe a tailor could swap elastics? Great length and puffiness, though, so I did end up wearing it.