The 4Forty Air MIPS is equipped with pro-level features and is the ideal helmet for all MTB adventures. The new slim shell design and 3-position visor are functional and guarantee exceptional ventilation and better goggle compatibility. The Float Fit- adjustment system, integrated Sweat Guide and antimicrobial Ionic+ padding provide exceptional comfort even on long tours, while the integrated MIPS system and extended hard shell coverage ensure that you are well protected in all actions. Upgrades like the Fidlock magnetic buckle and lightweight premium harness system make the 4Forty Air MIPS a favorite for everyday trail riding. Integrated MIPSIntegrated MIPS (Multi-Directional Impact Protection System)is designed to reduce rotational forces that can result from certain impacts. By integrating the MIPS slip plane into the retention system, Bell is able to reduce complexity and weight for a compact, better ventilated helmet that fits more closely to the head. Float FitBell's most advanced helmet fit system combines comfort and safety in an ultra-lightweight design. Float Fit optimizes the fit of the helmet in 2 ways - in terms of head circumference and vertical adjustability. To reduce weight and simplify usability, the guide arms uniquely enclose the back of the head thanks to "Float" design. This puts the helmet in an ideal position on the head. Simple, lightweight and comfortable. Fidlock magnetic closureThe Fidlock magnetic closure closes automatically and can be easily opened again by sliding it sideways with just two fingers. The operation with only one hand is even with gloves quickly and effortlessly possible.