Blue Satin Prom Dress

This blue satin formal dress features a sweetheart neckline and a corset bodice with delicate lace-up detailing at the back and adjustable straps. Was $348, am asking for $300 or $270. Has not been worn or used at all. Still has tags on and in garment bag. Is size 16 but can fit size 14 because of corset back.