Fox Racing Speedframe Pro 50th Anniversary Pro-level speed and style for all The Fox Speedframe Pro Helmet boasts impressive pro-level features and top-level protection in a highly-ventilated open-face helmet. This limited-edition of the Speedframe Pro Helmet commemorates 50 years of Fox innovation. The Speedframe Pro's excellent ventilation is the product of large vent ports and internal channeling in the in-molded EPS foam core, to direct airflow efficiently over the head, even during low-speed climbs. The helmet is constructed with Fox's Varizorb(TM) EPS, a dual-layer EPS foam that spreads out impact forces and disperses energy in the event of a crash-while MIPS(R) technology helps to greatly reduce rotational impact forces. A three-position visor allows for the use of goggles for convenient, adjustable coverage, while the removable, antimicrobial XT2(R) inner liner is easily washable, keeping the Speedframe Pro fresh ride after ride. Features MIPS(R) Technology significantly reduces rotational forces to the brain during a crash Earned a 5-star rating from the Virginia Tech Bicycle Helmet Ratings Program one of the most in-depth rating systems available for bike helmet safety360-degree fit system provides a dialed-in fit every time Varizorb(TM) dual-density EPS foam helps to disperse impact energy and spread it out over a larger area, reducing the chance of injury Adjustable 3-position visor is also goggle-compatible Fidlock SNAP buckle is easily operated, even while wearing gloves SPECIFICATIONSCore Material Varizorb(TM) EPSClosure system Fidlock SNAP buckle Protection Features MIPS(R) Technology Intended Use Trail, All Mountain Weight380g (size M)Sizing Size Small Medium Large Head Circumference (in)20. 8 - 21. 65"21. 65 - 23. 23"23. 23 - 24. 80"Head Circumference (cm)51 - 55cm55 - 59cm59 - 63cm | Fox Apparel | Speedframe Pro 50 Yr Minaar Men's | Size Small In Black