Key Features: Mips: Flex spherical + mips - comprehensive energy management - flex spherical enhances our ability to address high-speed impacts, low-speed impacts, as well as rotational impacts. Think of it as "comprehensive protection," with the added bonus of being able to design better helmet ventilation.Construction: 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 impactsVisor: Goggleguide adjustable visor — accommodates both goggles and glassesNumber of vents: 18 helmet vents, 4 brow portsInterior/liner type: Sweat guide pad design pulls moisture away from the brow pad and away from eyewearVentilation type: 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 ventilationFit system: float fit - a minimalist, lightweight fit system with an easy-to-turn rubber overmolded dial for adjustments (integrated with mips)