Officially: “festive” cocktail attire Unofficially/more details: This is a party, so dress the part. Think retro/ vintage silhouettes, wild prints, interesting fabrics (velvet, silk, sequins), sparkles… anything that makes you feel special. Because we’re so close to Halloween, we’re also not opposed to fun costume-y accessories, but don’t worry—we’ll have some available to borrow when you get here too.