Calvin Klein Off the Shoulders Silver Sheath Dress-Size 8-Lined

This is a Calvin Klein Off the Shoulders Silver Sheath Dress that is a size 8. It is 84% Polyester and 16% Metallics. Laying flat, it measures: Armpit to armpit-17.25" and the length is 35.5". It is lined and in good condition. Very pretty. Please measure something that fits you laying flat. The length is measured from the shoulder to the bottom hem. I measure the waist laying flat and double that for the waist measurement. This is for both our benefits so there will be no hassle of returns for not fitting. Thank you in advance.