The N-Ferno 6829 Freezer Balaclava Face Mask features two layers of high-quality, stretchable acrylic rib knit for protection from mild to extreme cold weather environments. Dual-layer, heat-trapping acrylic provides consistent warmth in cold storage and cold environments without being overly bulky. Longer length offers extra coverage for your head and neck and can be tucked into your jacket to seal out the cold. Reflective accents enhance visibility at night or in low-light conditions. This versatile balaclava provides the cold-blocking protection of a full-face mask but can also be rolled up and worn as a beanie. One size fits most, balaclava is the perfect warm face mask 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. It can also be worn as a ski face mask or worn hunting, climbing, running, cycling, boating, skating or other outdoor sports.