Durable cap style hard hat with pin lock adjustment system. Lightweight shell made with UV stabilized HDPE (High Density Polyethylene) reduces worker fatigue. 4-point quick release suspension with strong textile straps and crown comfort pad provides a comfortable and secure fit. Pin-lock adjustment system with easy to read hat sizing marks. Precise height adjustment settings to ensure proper depth. Low nape strap provides a secure fit， allowing the hard hat to stay on your head even when workers are looking down or bending over. Non-chaffing， replaceable foam sweatband for maximum sweat absorption. Shell has a with a rain trough for extra convenience in adverse weather conditions. Universal accessory slots accommodate a variety of eye， face， and hearing protection products. Meets ANSI/ISEA Z89.1 Type 1 and CSA Z94.1 Type 1 requirements. Fulfills Class E Electrical Insulation requirements.