Birdy Grey designer bridesmaid or wedding guest Black long formal dress. It's got the perfect dose of sexy for a wedding, complete with a draped cowl neck and a slit for a flash of leg. The body-skimming silhouette is super flattering on a range of body types and even though it hugs your curves, the material offers some stretch so it's comfortable for all your bridesmaid duties. The cherry on top? You can actually wear it again after the wedding! Throw on a cute blazer and a clutch for a black-tie event or another wedding as a (very chic) guest.