NWT Derek Lam Ivory Asymmetric Tuxedo Sheath Dress

NWT Derek Lam Ivory Asymmetric Tuxedo Sheath Dress Super chic Derek Lam dress. Ivory & white. Asymmetric neckline & slit at hem line. Size 44, which is US med. Never worn. Tags still attached. There is a minor flaw though. There’s a super light water mark / stain on the front. It’s reallllly light, so I tried to zoom in on the last three pics. Not really sure what it is- must have gotten marked during storage. Have not tried to spot clean or dry clean it as I’m not keeping it. No other flaws. Laying flat, unstretched: P2P 18” W 18” H 20” L 40”