“MIPS stands for Multi-Directional Impact Protection System,” explains Dixon. “It’s found inside the helmet, generally between the comfort padding and the EPS, a high-quality foam used to reduce energy.” The core of this is a low-friction layer that lets the head move 10 to 15 millimeters relative to the helmet in all directions, reducing rotational motion to the brain. “It also helps reduce the rotational forces caused by angled impacts to the brain.” Helmets don’t need MIPS to pass the safety certification process, but the tech has demonstrated remarkable efficiency in injury-prevention, which may justify the higher price tag.