H O M E PAC IX Rayon KevlarSKU: RK PAC IX (NSN # 4210-01-614-8101)Industries Firefighting Military Design PAC IX Material Rayon Kevlar Highlights Ply (Head): 2 Ply (Apron): 2 Length: 22″ CERTIFICATIONS CERTIFICATION: UL Certified to NFPA 1971-Current Edition. Meets or exceeds Cal/OSHA Standards. NSN # 4210-01-614-8101 MILITARY SPEC’D HOOD