Modern lightweight 'climbing inspired' industrial hard hat; chin-strap with molded chin cup for security. High density polyethylene material (HDPE); Hard Hat is Non-Vented. 6 point ratchet suspension, fits head sizes 6-1/2 to 8. Rapid-Dial ratcheting headgear with ability to grab and adjust; slotted adapters for use with variety of face shield adapters, ear muffs and Safe 2 System. Ideal for height, scaffolding work, and general head protection. ANSI Z89.1, Type 1, Class C, G, E, and EN397 European Standards.