Laundry by Shelli Segal Black and White Wrap Dress-Size Medium

This is a Laundry by Shelli Segal Black and White Wrap Dress that is a size Medium. It is 95% Polyester and 5% Spandex. Laying flat, it measures: Armpit to armpit-18.5" and the length is 35.5". It is in great condition. 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.