Sexy Blue Mermaid Prom Dresses, Open Back Long Evening Party GownThis stunning mermaid prom dress is a showstopper, with its open back and floor sweeping train. The satin fabric shines in the light, and the bold blue color is sure to turn heads. The dress is designed to hug your curves in all the right places, making you feel like a million bucks. With its backless design and mermaid silhouette, this dress is perfect for making a dramatic entrance at your next formal event. Fabric Satin Sleeves Sleeveless Back