Smith Variance MIPS Helmet - in stock now. FEATURES of the Smith Variance MIPS Helmet Hybrid shell construction 18 Vents MIPS Multi-directional impact protection system is used to reduce the rotational forces to the brain in the case of an oblique impact Smith x Boa fit system is a custom developed, Smith exclusive piece Building on the proven fit of our ergonomic head form, it offers an intuitive dial system for on-the-fly, single-handed micro-adjustment Three-quarter haloed design offers key features of self-centering and vertical adjustability, allowing the user to achieve a perfectly customized fit Snapfit SL ear pads Nano silver performance lining AirEvac 2 Continues to drive the warm air away from the goggle through external vents and internal channels in the EPS liner Removable ultra-light goggle lock Outdoor Tech audio systems integrating universally compatible ear pads with super-thin, bass thumping drivers