With class-leading Spherical Technology™, optimized ventilation, and a lightweight fit, the Super Air is Bell's most advanced trail helmet. FEATURES: MIPS (multi-directional impact protection system) - a leading slip plane technology designed to reduce rotational forces that can result from certain impacts. Fusion in-mold polycarbonate shell - a process pioneered by bell bonds the helmet's outer shell to the eps foam liner to create a sturdier helmet. Progressive layering: the process of engineering a helmet liner with variable eps foam densities to better manage the transfer of energies after some impacts Goggleguide adjustable visor — accommodates both goggles and glasses 18 helmet vents, 4 brow ports Sweat guide pad design pulls moisture away from the brow pad and away from eyewear Overbrow ventilation features intake ports on the brow of the helmet to usher in cool air and push it through the air-channel matrix for full-head ventilation Float fit - a minimalist, lightweight fit system with an easy-to-turn rubber overmolded dial for adjustments (integrated with MIPS) Complies with the US CPSC Safety Standard for Bicycle Helmet for Persons age 5 and older.