House of Harlow 1969 long sleeveless slip dress, pale dusty pink, Size S. NWT

Some people are saying this is satin. Be reassured that this is 100% Polyester. why does this matter? because you can wash polyester, and it has a little stretch. Satin does not. This dusty pink sleeveless dress has darts for your bust and appears to be bias cut to give some stretch and hang well. back keyhole with tie at neck. NWT.