The N-Ferno Spandex Top 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. The soft fleece traps body heat for warmth when working in the cold. The spandex top is ultra-stretchable and breathable. The longer length adds extra coverage and can be tucked into a jacket to keep your head and neck warm. Reflective accents offer visibility at night or in low-light conditions. One size fits most and this face mask can be worn alone or under hard hats, ski helmets or other head protection. This winter face mask is perfect 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. You can also wear this spandex top balaclava as a ski face mask or worn hunting, climbing, running, cycling, boating, skating or other outdoor sports.