ColdAvenger Classic Fleece Face Mask 100% Polyester Made in US Hand wash and air dry The original high-performance cold weather mask designed to protect against the damaging effects of cold air Classic fleece breathes well so you dont overheat, yet insulates against winter weather The ColdAvenger ventilator is made of a soft medical grade, non-toxic polyurethane that is comfortable and inherently antimicrobial The patented ventilator design allows you to breathe freely and keeps your airways protected with warm and humidified air Hidden nose-wire and a generous hook and loop closure allows for a custom fit