Elegant Sweetheart Sleeveless Mermaid Satin Long Evening Prom Dresses A line V Neck Spaghetti Straps Long Floor Length Lace Prom Dress With Mermaid Prom Dresses Elegant & Flattering Gowns KissProm Mermaid Prom Dresses Elegant & Flattering Gowns KissProm Square Neckline Trumpet Mermaid Satin Prom Dresses Missacc. This stylish. floor length mermaid prom dress will make you the bell of the ball. Cut with a square neckline and delicate straps. the split skirt shows off a hint of leg. Perfect for the special event or night out. its elegant design and timeless silhouette will turn heads.