At the beginning of her party Holly walks in wearing a towel draped around her- but in such a stylish manner you have to double-take to see it’s not an actual evening gown. (Especially as the one-shouldered Toga style dress was beginning to be fashionable.)
Holly changes, and come back in what looks like the dress she wore earlier in the film to visit Sing Sing prison, but transformed through different accessories….
Ah, the trademark cigarette holder!
Compared with her guests, Holly stands out as the most understated and elegant:
Love this moment when Paul checks the time on the watch on one lady’s ankle: