The Sir the Label Blanche Asymmetrical Gown in Black Made from a thick linen, this dress is the perfect dress to dress up or down this spring summer. Features a one shoulder and Sir Blanche Cut Out Dress in Ivory Coco & Lola SIR. Willa Lace trimmed Cutout Silk Maxi Dress in White Lyst SIR. Willa Lace trimmed Cutout Silk Maxi Dress in White Lyst SIR the label Dresses Sir The Label Blanche Dress Size Us4 Poshmark