High Low Cocktail Dress Ruffle Mac Duggal 8276 Plus Size Black Satin Cocktail Dress for Graduation with Leaf Puffy Tiered Skirt Perfect for Prom, Birthday Parties, Graduations Women's Sexy 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, Cocktail Dresses: Fun, Classy Cocktail Attire Party Dresses ASTR the Label