This is a Halston Heritage gunmetal sequin wrap dress.
Beautiful asymmetric one shoulder style with draped wrap front and grey lining with mini sequins.
Brand Size 8. I don't know if this is a UK or US 8 so I'd say it suits a UK size 8/10/ small 12.
Used but good condition, only worn once for an event. Perfect for a wedding guest, party or evening wear.