Benchmark Flame Resistant Winter Balaclava, Soft Fleece, Inherent Blend, HRC 2, Navy, Regular Balaclava for keeping head, neck, and face warm 7.5-oz. flame-resistant fleece knit fabric for protection against flame and arc flash Modacrylic / cotton / nylon blend Fits under any helmet or hard hat Flexible rib knit for conforming to facial profile