Elegant Spaghetti Straps Open Back Mermaid Blue Long Prom Dress V neck Yellow Open Back Mermaid Long Dress PollyBoutique V neck Blue Open Back Ruched Mermaid Long Dress PollyBoutique Strapless Blue Mermaid Long Dress with Slit PollyBoutique Strapless Blue Mermaid Long Dress with Slit PollyBoutique. Crafted from satin, this blue mermaid gown features a corset bodice with double straps and an open back design. It includes a zip closure at the back, a built in bra for support, and extends to floor length, creating an elegant silhouette. SKU:?? NP2640 Satin material Blue color Mermaid silhouette Corset bodice with double straps Open back Zip up back Floor length Built in bra