Big-Mountain brawn, designed for those who demand the highest level of performance, the MOD5 delivers the perfect balance of increased protection and weight savings for technical riding. The MIPS® Brain Protection System is a helmet integrated, low friction layer designed to reduce rotational motion transferred to the brain during an impact. MBS - Modular Brim System is a structue where two interchangeable brims allow for seamless helmet and goggle integration, no matter the size or shape of your favorite goggle. BOA® 270 fit system is a fully adjustable design is engineered to help deliver an exact fit. Adjustable ventilation allows hot air to rapidly escape out the top of the helmet. If conditions turn, close the venting to keep your head warm and dry.  MIPS® Integration BOA® 270 Fit system FIDLOCK® Buckle ASTM F2040 and CE EN1077 certifications MBS - Modular Brim System Removable liner/earpads Brim/Goggel ventilation Includes Helmet travel bag