Liz Claiborne Light Blue Maxi Dress-Size 16-Mother of the Bride-Event

This is a Liz Claiborne Light Blue Maxi Dress that is a size 16. It is lined and is 100% Polyester. Laying flat, it measures: Armpit to armpit-21.5" and the length is 50.5". It needs to be dry cleaned. It is in excellent condition. Very pretty. Please measure something that fits you laying flat. The length is measured from the shoulder to the bottom hem. I measure pit to pit laying flat for the Armpit to armpit measurement. This is for both our benefits so there will be no hassle of returns for not fitting. Thank you in advance.