The N-Ferno Balaclava Face Mask is designed with a lightweight spandex top and a stretchable fleece body to comfortably fit under hard hats and helmets with less bulk. Soft fleece traps body heat for warmth when working in the cold. High-quality, thermal fleece promotes warmth in mild-to-extreme conditions. Spandex top is ultra-stretchable and breathable. Long length adds extra coverage and can be tucked into a jacket to keep your head and neck warm. Reflective accents add 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. 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.