Occupational Safety Full Face Tube Liner for Classic Hard Hat - Hi-Viz Orange This 100% polyester knitted tube covers full face Fits snugly over most regular hard hat brims Traps warm air to keep head, face, nose and ears warm blocking the cold wind Versatile and can be used as a hat, a hard hat liner, a neck warmer, or a Balaklava-style face mask Hi-Viz orange color allows for easy spotting