Historically, women's evening dress tended to be more physically revealing than day dress. Worn in private or semi private spaces, dresses with low necklines and bare arms were accepted as aesthetically sublimated eroticism. [ An evening dress by Norman Hartnell, worn by Princess Margaret, on display at the new Fashion Rules exhibition, featuring pieces from the collections of HM The Queen, Princess Margaret and Diana, Princess Amarra Blue Dresses for Formal and Semi Formal Events AMARRA Johnathan Kayne Winter Formal Magic: The Best Ice Blue Gowns of the Season Johnathan Kayne