The Seirus Neofleece Comfort "Masque" Mask is a very comfortable basic mask. It is made of Neofleece, a technical fleece that is warm, comfortable, and wicks away moisture from the face. The outer layer of Neofleece provides excellent thermal and wind and weather protection. 100% polyester Comfortable mask using patented Seirus Innovation "Neofleece" technology. Neofleece is an exclusive design created to be the hottest fabric. Neofleece uses five layers of defense to keep you warm: rigid outer shell, waterproof dry hands / breathable liner, Neofleece fabric (neoprene with fleece lining), Thermolite synthetic insulation, and absorbent fleece. The comfortable mask is windproof and waterproof, the top is contoured to seal under the lenses, and has large vents in the center for increased ventilation. It comes with an adjustable velcro closure to ensure a snug, comfortable fit.​​