Sweep Train Elastic Satin Halter Column Silhouette Prom Dress. The prom dress in elastic satin is the perfect mix of vogue and elegance. A daring halter neckline design is sweet and a little flirty on this sheath dress. The exquisite beaded motif accents the breasts and is echoed at the zip-up closure. Buy this Hot Style Dress and you can Save 15% OFF on Cheap Sweep Train Elastic Satin Halter Column Silhouette Prom Dress@FancyLadies.