The N-Ferno 6828 FR Balaclava Face Mask is made with stretchable modacrylic fleece for fire-resistant protection and warmth. This fire-resistant 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, antistatic. 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 can be worn alone or under hard hats, ski helmets or other head protection. 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. Can also be worn as a ski face mask or worn hunting, climbing, running, cycling, boating, skating or other outdoor sports.