Black Sequin Prom Dress Strapless Long Black Sequin Prom Dress PromGirl ZAPAKASA Women Sparkly Gold Mermaid Long Sequins Strapless Formal Dress Applique Dresses & Windsor Trumpet Mermaid Off the Shoulder Sweep Train Sequined Evening Dresses. This stunning formal dress features a flattering off the shoulder sweetheart neckline and elegant sequin appliques. The trumpet mermaid silhouette creates a dramatic and glamorous look, with a stylish leg slit for added allure. Perfect for formal or any special occasion, this dress will make you feel confident and beautiful.