The N-Ferno Modacrylic Blend FR Fleece Balaclava Face Mask is made with stretchable modacrylic fleece for FR protection and warmth. This FR face mask meets requirements of Performance Specification ASTM F1506; classified CAT 2 according to NFPA 70E. Arc-rated; ATPV of 10.6 cal/cm2; and meets performance requirements of EN 1149, anti-static. Stretchable warm modacrylic cotton fleece construction fits comfortably under a helmet or hard hat, making it the perfect winter gear for working in ARC applications. Reflective accents offer visibility at night or in low-light conditions. One size fits most and this balaclava mask can be worn alone or under hard hats, ski helmets or other head protection. This winter face mask is ideal for those who work in construction, freight/baggage, drilling/mining, oil/gas refining, iron/steel, delivery/service, landscaping/grounds, warehousing, and working in refrigerated areas. This face mask can also be worn as a ski face mask or worn hunting, climbing, running, cycling, boating, skating or other outdoor sports.