ERB® Hard Hat, Series: Omega II®, Fits Minimum Hat Size: 6-1/2, Fits Maximum Hat Size: 8, Gray, HDPE, 6-Point Woven Nylon Suspension, ANSI Electrical Class Rating: Class C, E and G, ANSI Impact Rating: Type I, Ratchet Adjustment ERB® 19137 Omega II® Hard Hat, 6-1/2 Fits Mini Hat, 8 Fits Max Hat, HDPE, 6-Point Woven Nylon Suspension