Stretchy/elastic waistband! About a size M-L Approximate measurements are as follows: 27 1/2 inches long 19 inches across hips (laid flat) 13 inches across waistband (laid flat) Only worn a few times and looks very good! Part of sewing coming slightly undone (as pictured) but still easily worn without being fixed. I don’t sew and haven’t tried to fix it. Comes from a smoke free/pet free home. Message with any questions!