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 The Girlfriend's Guide to a Formal dress code. Reserved for elegant evening events, this dress code is less formal than Black Tie but more formal than Cocktail. Women should opt for a Checkout Trendy Chic Cocktail Dress Ideas For Women Clen Lux Zapakasa Women Dark Brown Sweetheart Long Formal Dress with Ruffles Ruched Strapless Mermaid Evening Dress Brown Formal Dresses For Women Windsor Brown Evening Dresses JJ's House