Design History Strapless lace maxi dress. NWOT

It's a super soft knit maxi with an elastic off-the-shoulder neckline accentuated with a feminine lace overlay, an effortless elastic waist and sexy double slits for maximum leg exposure. This looks like the Boston proper dress. The lace is the same. I’m guessing the manufacturer made it for more than one brand. PXL. New but does not have its tags Viscose/spandex easy fit with slight shaping Maxi: 57”-58” #004352