Popular climbing style helmet that meets ANSI/ISEA Z89.1 Type II Class C requirements. This addition to the PORTWEST Height Endurance head protection line features a high-performance ABS helmet shell with inner foam liner and a Y-style chin strap inclusive. Type II helmets help to reduce the force of impacts not only to the top but also the side of the head and make it an excellent all-round choice of head protection. The vents in the helmet shell help to reduce heat by allowing hot air to escape.