Exceeds ANSI Z89.1 standards, Type 1, Class C, G, and E for industrial head protection; CSA Z94.1-15. Cap-style hard hat contains an “HV” indicate for its high-visibility color, providing extra protection when working near moving vehicles or in low-light conditions. Outer shell is constructed from high-density polyethylene with a low-profile design that offers low center of gravity and better balance. Rain trough on the sides and back channel moisture away. Four-point Snap Lock suspension liner features a soft brow pad to absorb perspiration. Quick and easy adjustments can be done while wearing – just turn the knob to tighten to desired fit (from 6-1/2” to 8” hat sizes), and tuck straps securely out of the way for all-day, hassle-free use. Grippers on back help keep helmet in place. Tested and marked for reverse donning. Also tested for impact, penetration, flammability, electrical insulation, marking, and humidity. Includes chin strap attachment tabs, as well as universal accessory slots to accommodate cap-mounted earmuffs or a face shield. To clean, wipe shell with mild soap and water. Paint, chemicals, or solvents may affect the integrity of the material and should never be used.