Abus Macator MIPS Helmet The outstanding all-arounder The Abus Macator MIPS Helmet is an advanced all-arounder helmet for everything from commuting to spirited road rides. The Macator features a lightweight construction with a durable in-molded polycarbonate shell and an impact-absorbing EPS foam inner core. The Macator MIPS uses MIPS(R) protection technology, an industry-leading protection feature that uses a slip plane design to reduce rotational forces during certain angled impacts. The deep coverage ensures more of the head is protected, while the Zoom Ace adjustment system with a quick-adjusting dial makes precise fit tweaks a breeze. Speaking of breeze, the 5 vents and 8 outlet ports with included bug mesh keep the Mactor MIPS cool and bug-free for wherever the ride takes you. Features In-Molded polycarbonate shell with an impact-absorbing EPS inner core MIPS(R) technology uses a slip plane design for added protection from rotational forces on the brain during certain types of impacts5 vents with 8 outlets for cooling airflow at any speed Zoom Ace retention system features a quick-to-adjust fit dial, providing easy one-handed fit adjustments SPECIFICATIONSFit System Zoom Ace Intended Use Commuter, Urban, Road Weight320g (Size M)SIZE CHARTSize Small Medium Large Head Circumference (cm)51 - 55cm52 - 58cm57 - 61cm | Abus | Macator Mips Helmet Men's | Size Small In White