The 686 Full Face Balaclava might look like a simple and ordinary face sock, but a closer look reveals otherwise. A 100% acrylic knit provides non-absorbent warmth while infared and negative ions within the Full Face Balaclava's lining reflect body heat inwards. Antimicrobial, anti-static, and naturally deodorizing, the 686 Full Face Balaclava is tempting to wear even off the mountain.