PJ Salvage's Cosmo Girl Flannel is made of 100% Cotton Flannel. Button up top and elastic drawstring waistband on pant. PJ Salvage sleepwear and loungewear comes in a variety of sassy prints that are very hip and comfy. The line has garnered a loyal following among pajama lovers. More and more people are discovering the comfort and style of wearing PJ Salvage not just to sleep but for simply relaxing at home after work or on the weekends.