Silver sequin dress, size M, H&M 2020 Christmas collection, new with tags

This H&M holiday dress is brand new, never worn, with tags and spare buttons still attached. All-over sequins are silver and beautifully reflective, the lining is a light beige/nude tone. Adjustable tie waist with attached belt. Button closures at neck and wrists, deep V slit at left leg. Size medium - flat measurements: 14" across shoulders, 16.5" from the top of the collar to the middle of the waist belt, 16" across waist (with belt untied), 26" sleeve length, 2" stand up collar (approx. 15" neck diameter), 53" length from shoulder seam to hem, 21" slit at left leg. The care tag lists this dress as 94% polyester, 6% elastane.