If, however, you push grip just a bit too far then you'll find the In-Mold polycarbonate shell, EPS liner and hardbody shell can take the hard knocks of hitting the dirt, protecting your head from impact. With the Multi-Directional Impact Protection System (MIPS) the Fixture also delivers class-leading protection and energy redirection from impacts. It's a helmet that gives the confidence to keep progressing with your mountain biking. The Fixture also benefits from 18 large vents that keep air flowing over your head, providing a cooling breeze as you take to snake-like singletrack or tackling a techy climb. The Roc Loc Sport fit system is incredibly easy to use and gives you the optimal fit every time and it integrates perfectly with the Multi-Directional Impact Protection System (MIPS) to deliver comfort alongside the protection. With quick-dry padding, you'll also enjoy a fresh ride during even the longest and sweatiest of trail days. What is MIPS? The Mips system is designed to provide added safety for helmets in many accidents. For certain impacts, the Mips system can reduce harmful rotational motion that might otherwise be transferred to the user’s head. Rotational motion is a common cause of concussions in oblique hits to the head. In a crash, the Mips system is designed to move slightly inside the helmet to help redirect forces away from the head.