Winter liner
The N-Ferno 6890 3-Layer FR Winter Liner features 3-Layer Modacrylic twill/FR Thinsulate/Modacrylic fleece (ATPV rating of 27 cal/cm2) and a shell made of Modacrylic cotton blend twill. It meets performance requirements of ASTM F1506 and NFPA 70E (HRC 3). The liner also has an elastic gather at the forehead, warming pack pockets, and a hook-and-loop chin strap.