Square Neckline Sheath Wedding Party Dress with Cape Sleeves E86092 Sheath Column Square Neckline Satin Wedding Dresses With Appliques Lace Sleeveless Square Neckline Sheath Wedding Dress With Beading Throughout Square Neckline Sheath Cocktail Dress with Beaded Waist E86026 Floral Square Neckline Sheath Wedding Dress with Tulle Overskirt Square neck sheath wedding dress 60 photos Astyledwedding.com. This wedding guest dress features a classic square neckline and a sleek sheath silhouette that gently skims the body for a refined look. The column style design offers a modern, elongated appearance, perfect for formal occasions. Crafted to provide both elegance and comfort, this dress is an excellent choice for those seeking understated sophistication in a soft, refreshing hue.