You don't have to be sending forty-foot cliffs to necessitate a helmet?stay safe day in and day out with the Giro Union MIPS Helmet. Fully loaded to protect your dome, the Union features MIPS (Multi-directional Impact Protection System) technology for added protection against angled impacts and to reduce rotational forces. The fit can be dialed in with Giro's In Form 2 fit system to deliver a snug and secure fit as you ride. Multiple vents and an adjustable system means you won't have to worry about overheating under all that protection, but if you do, the XT2 anti-odor treatment will keep things smelling fresh for the next day. Giro even made this helmet compatible with Giro Audio Systems by Outdoor Tech (sold separate) for easy music listening as you ride.