Black tie sits comfortably at the peak of formality without being too over the top. It's that sweet spot between cocktail attire and the ultra fancy white tie. Think of it as the perfect balance Tie Halter Neck A Line Poplin Midi Dress shopaleena Oleg Cassini Black Tie Blue Halter Dress Womens Small Prom Cocktail Dress eBay Pleated Halter Tie Dress Navy Clothe Boutique ASOS DESIGN asymmetric slash shoulder midi dress with halter neck tie in black ASOS