The Own Studio BM 005 Dress (Grey/Anthracite)

I wore this as a bridesmaid originally, and have since re-worn it to formal events and another wedding — it’s proved to be a brilliant repeat piece. Here’s what the brand says: luxe crepe-backed satin halter with an elegant sash tie neck and dramatic keyhole back. Bias cut for extra movement, with an optional hidden hook and eye fastening at the bra line so you can wear it comfortably with a bra if you prefer.
Size UK 8 — due to the loose fitting nature, would also work well for a 6 or 10.
Happy to meet in the Farringdon or Streatham areas for collection/delivery to save on fees.