Rails Amaya Dress in Blue. - size XS (also in L, M, S) Rails Amaya Dress in Blue. - size XS (also in L, M, S) 100% cotton. Made in Vietnam. Hand wash. Fully lined. Pull-on styling with side button closure. Lightweight challis fabric. Due to the unique wash, colors and patterns may vary slightly. RAIL-WD177. 607-111A-2539. 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.