Princess Polly Chloe midi dress - polka dot cut out dress

Worn once for engagement pics. Size US 8 but would compare to medium. Cut out dress open lower back and sides. Beige color with black dots. From princess Polly, no longer available on website. Zipper in back spilt at the bottom when I first opened the package. But I was easily able to put it back in place and wear it all evening long with no issues, I have not noticed it do that again since, even after cleaning.