Ergodyne - EGO16826 The N-Ferno Balaclava Face Mask is designed with warm, stretchable fleece to cover your neck, head, and face. The two-piece construction allows you to wear it in two different ways: detach the ends and wear as either a neck gaiter or a skull cap. High-quality, thermal fleece promotes warmth in mild-to-extreme conditions. Long length adds extra coverage for your head and neck for protection against the wind and col. Reflective accents add visibility at night or in low-light conditions. Unique, hook-and-loop attachments connect to your hard hat's suspension system to keep it in place. One size fits most and can be worn alone or under hard hats, ski helmets or other head protection. Included straps secure around hard hat suspension for increased stability. This face mask is perfect for construction, freight/baggage, drilling/mining, oil/gas refining, iron/steel work, delivery/service, landscaping/grounds, cold storage/warehousing and material handling.