The most formal event you could imagine today would be a white-tie event, which is reserved only for occasions at the highest instances
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an embellished flat or sharp lace-up oxfords could be appropriate options too. The Emily Post Institute agrees: Women can choose either a formal evening gown, a shorter cocktail dress, or dressy separates. And while womens black tie dresses often have formal cuts (think covered shoulders or boned corsets), here, you can be a little less fussy when it comes to tructure
When it comes to work dresses, there are four main categories for women to choose from, including business professional dresses, business formal dresses, business casual dresses, and casual dresses
What is a Black Tie Event