Rails Nicole Sweater Dress in Black. - size XS (also in ) Rails Nicole Sweater Dress in Black. - size XS (also in ) 70% wool 30% cashmere. Dry clean only. Unlined. Lace-up front with tie closure. Knit fabric. RAIL-WD88. 8508 576 087. Launched in 2006, Rails is a unique brand of fashion fusing California comfort activewear with European styling. High quality fabrics, narrow cuts, and unique lines; this collection is influenced by international travel and metropolitan lifestyle.