Hard Hat, Front Brim, Green, Graphics None, ANSI Type 1, ANSI Class E, Fits Hat Size 6-1/2 to 8, Venting No, Accessory Slots Yes, Suspension Pinlock, Shell Material Polyethylene, Standards ANSI Z89.1-2009 MSA Hard Caps and HatsTough, lightweight polyethylene shell. Slotted caps permit easy attachment of accessories such as hearing protection. Nonslotted hats with full brim offer extra coverage at sides and back of neck. Vented caps provide improved air circulation.Meet ANSI Type I (top impact)