Fox Speedframe RS Paranoid Helmet Elite-level performance for the most technical trails The Fox Speedframe RS is Fox's top-rated, high-tech helmet for riders who take chances on the trails, but not when it comes to their helmets. This helmet combines next-gen safety features and high-performance elements to balance fit and comfort, with performance and protection. The Speedframe RS incorporates MIPS(R) Split Integra technology, reducing the effect of rotational forces during certain angled impacts. The Speedframe RS is even ranked #1 by Virginia Tech Helmet Ratings and meets e-bike standard NTA-8776. With the BOA(R) Fit System, the helmet is precisely adjusted at the twist of a dial, with a magnetic FIDLOCK SNAP buckle to keep the helmet secured. All this is combined with ventilation with in-molded air channeling, an Ionic+(R) antimicrobial liner, a removable visor, and integrated sunglasses storage. The result is a top-performing helmet for the most challenging trails. Features Exclusive MIPS(R) Integra Split technology offers dynamic protection, with a dual-shell design, allowing the two halves to slide independently and reduce rotational forces BOA(TM) fit system allows for precise, effortless fit adjustment at the twist of a dial Sunglasses storage for easy stowing of sunglasses on long climbs Removable visor to suit every rider's preferences Fidlock SNAP buckle is easily operated, even while wearing gloves SPECIFICATIONSClosure system FIDLOCK SNAP magnetic buckle Fit system BOA(R) Fit System Protection Features MIPS(R) Integra Split Technology Intended Use Trail, All Mountain Weight370-440g (sizes S-L)Sizing Size Small Medium Large Head Circumference (in)20. 1 - 21. 7"21. 7 - 23. 2"23. 2 - 24. 8"Head Circumference (cm)51 - 55cm55 - 59cm59 - 63cm | Fox Apparel | Speedframe Rs Paranoid Helmet Men's | Size Small In Cocoa