The Fox Speedframe MIPS Helmet is a mountain bike helmet for protection while on the trail. The 360 Fit System dials in the fit, so it won't slide around while you're focusing on the next twist or turn. The Mips technology adds an extra layer of safety, by reducing rotational motion of the brain in case of a crash. This goggle-compatible helmet also features a 3-position visor for clear views of what's coming ahead.