The new Vertigo helmet from Troy Lee features integral MIPS technology.MIPS stands for Multi-directional Impact Protection System, it is a revolutionary technology that lets the helmet slide relative to the head, adding more protection against rotational violence to the brain caused by angled impacts. This integrated helmet is lightweight, durable & comfortable for all-mountain & trail riding with superior venting & wicking capabilities. A triple-angled retention system personalises your fit & keeps the helmet where it should be when hurtling around dusty mountain trails