The MET Revo MIPS is an MTB helmet for enduro trail and E-MTB riding. It earned a 5-star rating from the Virginia Tech Helmet Lab and carries NTA certification for E-MTB use. Refined internal airflow channels improve ventilation at low and high speeds and a multi-position visor makes room to store sunglasses.MIPS rotational impact protection system5-star rating from the Virginia Tech Helmet LabNTA certified for E-MTB useUp to 23% more ventilation than the previous RevoMulti-position adjustable visor with room to store sunglasses in the ventsSafety-release visor detaches in a crash to help keep the helmet from shifting