Adorable xs/s button front mini dress

The cutest little summer dress, never worn, NWT. Adjustable spaghetti straps. Button down front. Waist approx. 27,” skirt 18.” Love this but it was a gift and it’s too small for me…tag says UK size 8, FR size 36, I would say it’s an XS or S. Polyester but very soft, feels like silk. Small fabric flaw on the back bottom right edge of the skirt, imperceptible unless you really look for it, see the last photo.