The N-Ferno 6820 FR Knit Winter Hat provides warm fire-resistant protection for those working in cold environments where arc flash is a risk. Our highest rated flame-resistant product, this self-extinguishing winter hat keeps workers safe. A modacrylic and cotton-blend shell provides a comfortable and snug fit that keeps the cold air out. The 40% cotton and fleece lining adds softness and warmth for optimum comfort. Machine washable, this durable thermal hat is designed to withstand wear and tear. The inherent flame-resistant material won't reduce after multiple washes. Wear the skull cap hat alone or under a hard hat for added warmth. A reflective accent keeps wearers safe and seen. This one-size-fits-most winter hat is ideal for those working in environments where arc flash can occur—including electrical, manufacturing and construction work. Also great for weekend recreation such as hunting, skiing or climbing.