Sheer Mesh Underboob Dress Black 2XL from Magic Silk Lingerie. 2XL, 2 extra large fits plus size. Ladies dress sizes 20 to 22. From the Exposed by Magic Silk Collection, this style includes: a slip on style dress featuring non-restrictive design, an underboob cutout in the front, a cutout open back with a matching crotchless G-String Panty. Magic Silk Women's Sexy Lingerie. U.S Lingerie Company, Ladies Intimate Apparel.