Navy Blue Column Square Knee Length Zipper Ruched Satin Bridesmaid Dresses Sheath Column Square Neckline Long Sleeves Detachable Crepe Satin Sheath Column Wedding Party Dress Square Neck Sleeveless Knee Length Square Neckline Sheath Dress Neiman Marcus. A chic, knee length dress crafted from a lustrous satin blend with a beautifully structured finish. The sleek sheath silhouette is elevated by a sophisticated square neckline and short sleeves. Perfect for evening events or formal occasions. Silhouette: Sheath Column Fabric: Stretch Satin Hemline: Knee length Back Details: Zipper Neckline: Square Sleeves: Short Embellishment: Ruched Built In Bra: Yes