6970 Extreme Balaclava with Hot Rox is a technologically advanced, high-performance mask to combat the damaging effects of breathing in cold air. Built-in, removable heat exchanger warms the air before it gets to your face for easier breathing in extreme cold. Easily remove mouth cover with hook-and-loop closures. Adjustable nose clip prevents eyewear from fogging, and the adjustable face mask is removable with hook-and-loop attachments. Reflective accents offer visibility in low-light conditions. Easily tuck the edges of the face mask under other clothing for a tight fit and increased warmth. Wear balaclava alone as a face mask or under a hard hat for layering. Formfitting, 320 gram fleece absorbs moisture to keep you dry and fits most head sizes. Face mask is perfect for workers in construction, drilling/mining, oil, gas and more. Wear it during recreational activities, such as hunting, climbing and running.