a line dress Formal Dress: 7111. Long, Strapless, A-line, Lace-up Back | Alyce Paris Paris Blue A-Line Floral Printed Dress 7442

PMC, NIH

New York City Themed Party Guide 56

Wear an unpadded bra (your dress will have a built-in bra), Relax arms at sides, Pull tape across the fullest part of the bust

National Institute of Health, was one of the first members of the scientific community to offer some insight into the "why" behind the illusion a decade ago

Built-in Bra Yes Back Details Button Season Spring, Summer, Fall Neckline Sweetheart Material Tulle, Lace Appliques Silhouette A-Line Body Shape Misses Train Sweep/Brush Train Sleeve Length Sleeveless Waist Line Natural Hemline Floor-Length

If possible you should ask them what they're wearing, or, at the very least, scope out what their expectations are