The Fox Speedframe Pro is built to go flat out, all day, every day on any trail. Fox built this helmet for the true mountain biker, with input from the pro's to make this an awesome mtb helmet that ticks every box. The Speedframe Pro is one of Fox's top tier helmets, with MIPS to protect against rotational impact forces and a 360 degree retention system for a great fit. The reliable dual-density Varizorb EPS Liner is built to absorb impact and offer the safest ride possible. When you want to ride at your best, the FOX Speedframe Pro really delivers on every front for the best mountain bike riding experience. Features- 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 Dual-density Varizorb EPS provides improved protection by spreading forces of impact across a wider area Fidlock SNAP helmet buckle provides quick and secure entry and exit while wearing gloves Removable, washable XT2 liner is antimicrobial and manages odor while wicking moisture away from the head Optimized venting with channeled, in-molded EPS provides efficient cooling Goggle compatible, 3 position adjustable visor 3600Fit System allows you to dial in your perfect fit every ride.