Vintage lace up rayon dress

Vintage sleeveless fit and flare mini dress with a lace up bodice from Le Chateau (probably late 70s or early 80s) Dark navy/black with tiny beige and ivory polka dots all over Back zipper Labeled size small and fits like modern XS Flat lay measurements: Bust - 16" Waist - 13" Length - 31" 100% rayon Very good pre-owned condition with minor overall fading