The Float Fit™ fitting system, integrated Sweat Guide™ and Ionic+ antimicrobial padding provide exceptional comfort on long rides, while the integrated MIPS system and extended hardshell coverage keep you protected through all the action. Upgrades like the Fidlock® magnetic buckle and lightweight premium harness system make the 4Forty Air MIPS a favorite for everyday trail riding.
MIPS
MIPS is a sliding plane system within the helmet designed to slow or prevent the amount of energy transferred toward or away from the head.
IN-Mold
With In-Mold construction, the tough polycarbonate outer shell is bonded to the impact-absorbing EPS inner shell in one step while it foams. This makes the helmet even more resistant without adding weight. This production process also makes it possible to form significantly better ventilation systems and vents. In-Mold helmets are therefore lighter than traditional helmets and have significantly better ventilation systems.
Float Fit
Bell'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 places the helmet in an ideal position on the head. Simple, lightweight and comfortable.
Goggle Guide
An adjustable visor system that works with goggles or sunglasses whether the visor is fitted or removed.