Can be fitted to Centurion Safety Helmets to provide additional neck protection - especially suitable in high temperature environments. Twin layered composite organic needlefelt with a dark green Panox/Aramid working surface and a light green integral lining of FR Rayon. Aluminised on one side with a highly reflective film. Negative reaction to flame in EN 532, 1994 flammability test (test method: 10 second flame applied to face of vertical fabric sample). Thickness of material 3.50mm. Weight: 650g/m2.