I am an hourglass 16/18, and wear a consistent XL or 1X.  Because of the reviews I ordered a 3X so it would be very relaxed through the stomach and hips, but it is still tight/clingy.  I would say this is not a style for hourglass women.  If you do order go UP a full TWO SIZES.  I bought two skirts (mauve and dark red), and other than running EXTREMELY small, they are nice.  At 5 foot 6 inches, they are a nice length (they reach the floor).  The fabric is thin, so plan on wearing a slip.