My SO reminded me of an event tonight at his firm. Having never been strictly bound by a professional dress code, I'm wondering what cocktail attire means if a woman pursues a pant option. For reasons involving commuting and skin showing, I'd rather not spend the day running errands in a mini. Would wool culottes--black or light grey--with a white tux shirt be appropriate? Or how about a statement white shirt with a pair of black slacks? Or, lastly, a black silk wrap top with a black slacks? The fancy top + black slacks seems to be a theme.