The Smith Mission MIPS Helmet is a Snow helmet with a classic look that's lightweight, durable and dependable. Its Aerocore(TM) construction Features KoroydA(R), which takes on impact and reduces rotational forces. MIPSA(R) Technology on top of that makes this helmet strong and protective in case of an accident on the mountain. Comfort comes in the form of adjustable climate control, a dial Fit system, SnapFit SL2 earpads and AirEvac(TM) ventilation to keep you cool in the ways you want to be. Features of the Smith Misson MIPS Helmet MIPS system equipped-In a helmet with the MIPS brain protection system Shell and liner Are separated by a low friction layer that allows the helmet to slide relative to the head in and angled impact Compatible with Outdoor Tech audio systems-sold separately