Deep V neck Black Long Spaghetti Straps Evening Prom Dresses, Custom S MarryLover Would this be okay for wedding guest cocktail dress? : r Weddingattireapproval Dress code: cocktail attire. You can never go wrong with a little black dress. In this case, a midi lace black dress. Tip: If you stick to a monochromatic palette, like black, Size S Burgundy Dress with Scarf Detail by Deme By Gabriella Pickle