The Chiru is constructed from expanded polystyrene (EPS) foam, a lightweight material that is efficient at absorbing and diffusing forces caused by impacts. The foam is molded into the hard, outer shell that protects the more delicate EPS foam from regular wear and tear. For added protection on the trails and everyday riding, the Chiru features a dropped profile that increases coverage around the sides and rear of the head.

Adding to the Chiru’s impressive protection platform is the MIPS (Multi-directional Impact Protection System) liner that helps reduce the risk of rotational brain injury in crashes. A thin layer of plastic between the Chiru’s helmet pads and the EPS foam helps isolate your head from the helmet shell. In the event of an impact, your head can rotate a fraction of a second longer, independently from the helmet shell, which can slow the brain's rotation and reduce the likelihood of severe brain injury.