Bell 4FORTY AIR MIPS S M CPSC/CE Helmets Adult Unisex protective gear, bike helmet, mountainbike MTB Matte Black, L

MIPS EVOLVE PROTECTION: Integrated slip plane technology in the retention system reduces rotational forces from certain impacts whilst reducing complexity and weight for a compact, better ventilated helmet that fits more closely to the head. FLOAT FIT SYSTEM: Minimalist, lightweight fit system with an easy-to-turn rubber overmolded dial for quick adjustments, integrated with Mips technology for a secure and comfortable fit. FIDLOCK MAGNETIC BUCKLE: Easy-to-use magnetic buckle slides closed laterally for an effortless, secure fit, providing time-saving convenience and reliable fastening. SWEAT GUIDE TECHNOLOGY: Innovative pad design pulls moisture away from the brow pad and away from eyewear, keeping you comfortable during intense trail rides with generous ventilation throughout. TRAIL-READY FEATURES: Full hard shell construction with extended rear coverage, adjustable visor, quick-adjust strap fasteners to keep straps flat and properly positioned, designed to withstand the rigors of demanding mountain biking.