Bell 4Forty AIR MIPS MTB Helmet 2022: Matte Black Camo, M 55 59cm

MIPS EVOLVE — Mips Evolve is designed to reduce rotational forces that can result from certain impacts. By integrating the Mips slip plane into the retention system, we are able to reduce complexity and weight for a compact, better ventilated helmet that fits more closely to the head.