The PIP Whistler ™ 280-HP241 Cap Style Hard Hat features a lightweight shell made from UV-stabilized High Density Polyethylene (HDPE), which reduces worker fatigue. The shell design features a rain trough for added convenience in adverse weather conditions. 4-Point quick release suspension with strong textile straps and crown comfort pad provides a comfortable and secure fit. Non-chaffing, replaceable foam sweatband for maximum sweat absorption. SURE LOCK wheel adjustment system for one hand size adjustments. 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. Universal accessory slots accommodate a variety of eye, face and hearing protection products. Meets ANSI/ISEA Z89.1 Type I and CSA Z94.1 Type I requirements. Fulfills Class E Electrical Insulation requirements (20,000 volts).