Molded from high density polyethylene6-point suspensionMeets ANSI Z89.1-2009, Type 1 Class C, E and G requirementsAdjusts to head sizes, 6-1/2 to 8Features a full 6-point woven nylon suspension and accommodated a chin strap as well.The suspension has retaining slots for your goggles and this hat features a moisture wicking brow pad that is removable, washable and replaceable.Accessory slots accommodates a wide variety of eye, face and hearing products.This helmet is certified when the headband is installed in the reverse position.The Mega Ratchet secure-fit features an easy turn knob that allows size adjustment without removing the helmet.Each turn of the ratchet knob automatically lock with 50 meshing teeth securing the position.The no-slip hold maintains the desired fit even in the most physically active jobs or extreme weather conditions.The hinged ratchet fits low on the nape of the neck and is height-adjustable for a perfect fit.The ratchet mechanism is cushioned with a thick sponge padding for long-lasting comfort.This hard hat is SEI Certified.