NWT H&M sleeveless dress, back cut out

NWT H&M sleeveless dress, zipper closure back, cut out on back, A-line. H&M does run small but this is a size 12 so size 8-10 could wear it. 37” long, I am 5’3” and it falls at my knee. I took pics of all tags to show fabric it’s made out of. Any questions please let me know. This is a cut dress, looks formal but has flirty cut out. Just never had chance to wear it.