Rails Rebel Top in Grey. - size S (also in L) Rails Rebel Top in Grey. - size S (also in L) 100% silk. Dry clean only. Front button closure. Breast slip pocket. Imported. RAIL-WS753. 910-765-008. 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.