Made of durable polycarbonate and featuring a uniridge design, these caps are specialty designed for use by utilities and other industries where head protection with dielectric protection is necessary. Retains limited resistance to top impact or penetration over a wide range of temperatures. Topgard® Hard Hat, Cap Style, Standard Size, Fits Minimum Hat Size: SZ 6-1/2, Fits Maximum Hat Size: SZ 8, Green, Polycarbonate, 4-Point Fas-Trac® III Suspension, ANSI Electrical Class Rating: Class E, ANSI Impact Rating: Type I, Slotted: Yes, Ratchet Adjustment