Thermoplastic full brim hard hat with unique, smooth crown that eliminates the danger of falling objects being trapped by ribs, ridges, or slots. Adjust head size by using rear-located ratchet mechanism and tilting the headband. Includes 8-point suspension with ratchet adjustment, unless otherwise indicated. Caps are also available in heavy-duty, lightweight fiberglass for optimum impact resistance, durability and crack resistance, Quick-LokĀ® mounting blocks for attaching a welding helmet or faceshield, and Swingstrapā¢ suspension that allows the wearer to convert from front to rear wearing positions without reversing the suspension or headband. Model E-1 full brim hats provide extended protection from the sun, nontoxic splash, dust, dirt and debris. Models E-1 and E-2 are SEI certified to meet ANSI Z89.1-2014, Type 1, Class E, G or C. All P2N and P2HN caps are SEI ANSI Type 1, Class G and CSA Approved Type 1 Class G or C in both forward and reverse positions. The Quick-LokĀ® model is Class C and G approved. (Fibre-Metal)