F-400 Ratchet Headgear from Fibre-Metal® by Honeywell, 4" crown with padded perforated sweatband. Exceptionally lightweight and comfortable. Uses Channel-Grip mounting system for a quick and positive visor seal. Made from heat-resistant Noryl® material, and meets ANSI Z87.1 standards. Fits easily over today’s spectacles with space for air circulation to prevent fogging. Accommodates wide vision #4178 wraparound 8" x 16.5" visor, or #4199 extended view 9.75" x 19" visor, not included. Shown with Clear Visor #4178 sold separately.
