Floral gray dress

Beautiful Fully lined, light grey floral “lace” dress. Stitched in “peep” holes down the 7/8 sleeve. Lightweight great for summer. New never worn except for pics, still in package. Sizing is difficult see pics of tag. I think it is a small. My daughter is modeling this dress and wears an XS and a 30B. I would guess the dress is a small.