Bell 4Forty Air MIPS Helmet Pro-level features. Privateer price. The Bell 4Forty Air MIPS is the trail helmet for riders who want everything without needing a pro contract to justify it. A sleek new shell design and 3-position adjustable visor improve both airflow and goggle compatibility, while Float Fit(TM), Sweat Guide(TM), and Ionic+(TM) padding make it genuinely comfortable through full days on the trail. Mips Evolve(R) integrates the slip plane directly into the retention system for a compact, better-ventilated fit that sits closer to the head. Add a Fidlock(R) magnetic buckle, goggle gripper, and eyewear storage notches - at just 360g - and the 4Forty Air MIPS becomes a very easy choice for daily trail riding. Features Mips Evolve(R) integrates the Mips slip plane directly into the retention system, reducing rotational forces in certain impacts while keeping the helmet compact, lightweight, and better ventilated Float Fit(TM)a minimalist, lightweight retention system with an easy-to-turn rubber overmolded dial for one-handed adjustments, integrated with Mips(R)Fidlock(R) magnetic buckle slides closed laterally for quick, effortless, one-handed closure3-position adjustable visor provides versatile sun protection and easy integration with goggles or glasses Sweat Guide(TM) channels moisture away from the brow pad and eyewear during hard efforts Ionic+(TM) padding is quick-drying and fights odor-causing bacteria for long-term freshness Goggle Gripperrubber grip on the rear of the helmet keeps goggle straps locked in place Eyewear storage notches let you stash glasses securely on the helmet No-Twist Tri-Glides(TM) keep straps flat and properly positioned for a clean, comfortable fit Lightweight at 360g (size M)SPECIFICATIONSWeight360g (Size M)MIPSMips Evolve(R)Fit System Float Fit(TM)Safety Certifications US CPSC (Persons Age 5 and Older)Intended Use Trail, All-Mountain Sizing Size Small Medium Large XLHead Circumference (in)20. 5 - 22"21. 625 - 23. 25"22. 75 - 24. 375"24 - 25. 625"Head Circumference (cm)52 - 56cm55 - 59cm58 - 62cm61 - 65cm | Bell | 4Forty Air Mips Helmet Men's | Size Medium In Black | Rubber