The Girlfriend's Guide to Cocktail Attire: A semi formal dress code for evening events, weddings, and upscale gatherings. Think: dressy but not stuffy. Cocktail attire has fewer rules than Black Tie and White Help with Semi formal Examples for women cocktail attire dress code. : r Weddingattireapproval What Is a Cocktail Dress? US Style Guide for Modern Events Off Shoulder Short Party Dress with Sweetheart Bodice White XSmall Semi Formal Dresses Chic Party Gowns The Dress Outlet