Lilly Pulitzer Dress Women's Navy Charlene Shift Gold Button Pocket Classic
Excellent used condition. Style 68919

This is either size L or XL. I checked other listings and their measurements are not consistent with what I have. Please see below to make sure this work for you.

Pit to pit is 20" wide
Waist is 17.75" wide
Shoulder to hem is 37" long
Pit to end of sleeve is 13"