Details The Fox Racing Speedframe MIPS™ Helmet has premium features usually meant for much more expensive helmets. A MIPS™ liner, goggle compatible 3-position visor, and 360-degree fit make the Speedframe one of the best values in an open-face mountain bike helmets. Add in the legendary aggressive Fox design DNA, and you have one of the most shred-ready mtb helmets in the market today. Construction Mips® equipped MIPS™ added protection system has been proven to reduce the rotational motion when implemented in a helmet by absorbing and redirecting energies and forces otherwise transmitted to the brain 38% EPS, 22% nylon, 34% PC, 4% polyester, 3% POM Fit 360° Fit System allows you to dial in your perfect fit every ride Goggle compatible, 3-position adjustable visor Fidlock SNAP helmet buckle provides quick and secure entry and exit while wearing gloves Ventilation Optimized venting with channeled, in-molded EPS provides efficient cooling Details Removable, washable moisture-wicking liner Helmet Size S = 51-55cm / 20.1-21.7" M = 55-59cm / 21.7-23.2" L = 59-63 / 23.2-24.8" Weight 366g Size Medium Fox Racing Speedframe Helmet