Type II Non-Vented Industrial Climbing Helmet, ABS Shell, EPP Foam Impact Liner, Wheel Ratchet Adjustment and 4-Point Chin Strap EVO® ALTA™ Ascend® offers all-around impact and penetration protection, meeting ANSI/ISEA Z89.1-2014 Type II requirements. The climbing-style safety helmet features a specialized shell structure and internal EPP liner to increase durability and shock absorption performance. Precise adjustment settings in the suspension enable a secure fit, ensuring the helmet remains stable. FEATURES Climbing style helmet with a specialized shell structure and internal EPP liner to increase durability and shock absorption performance Precise adjustment settings enable a secure fit, ensuring the helmet remains stable Engineered to maximize compatibility and accessory integration with JSP accessories Integrated and replaceable 4-point chin strap with a quick release buckle that is adjustable for a safe & secure fit Designed to keep wearer cool with textile suspension allowing airflow within the shell Meets ANSI/ISEA Z89.1-2014 Type II, Class E