N-FERNO® 6885 Two-way Cold Series FR Winter Liner with versatile design of detachable upper and lower sections to provide the ultimate in winter and FR protection. Includes Nomex® metal zipper, hook and loop straps for easy hard hat attachment, and warming pack pockets. Upper section: Modacrylic cotton blend twill with Modacrylic cotton fleece lining (ATPV rating of 20 cal/cm2). Lower section: Double layer modacrylic blend rib knit (EBT rating of 17.0 cal/cm2). Meets requirements of Performance Specification ASTM F1506. HRC 2.