A.L.C. exemplifies chic pajama dressing with the Annex Dress. The sleek fabrication hugs curves while a flounce hem creates movement to lend an updated feel to this well-known slip dress silhouette.. Poly blend. Dry clean only. Fully lined. Adjustable shoulder straps. Velvet fabric. ALX-WD99. 6DRES00081. Designer Andrea Leiberman's key pieces for fall arrive as a mixture of knit separates, classic blazers, and airy pleats. As her line continues to evolve and expand, expect looks that incorporate leather, fur, and original prints as well as the introduction of new silhouettes.