The Blackhawk Bibbed Balaclava with Nomex is constructed entirely of 7 oz. DuPont™ NOMEX® fabric to provide flame/flash protection to the head and neck. Will not support flame or combust up to 800˚ F (427˚ C). Extended bib for extra protection on the neck and shoulders. Flat-seam stitching on the inside won't irritate when wearing a helmet. 15" total length (38 cm).