The new Altus combines ultra-light, in-mold construction with the increased protection of Koroyd and MIPS. The Altus ensures a dialed-in fit thanks to the tried-and-true VaporFit adjustable fit system. This modern, low-profle helmet design also includes a slimline venting system with a low-profile and intuitive shutter button to adjust airflow even with a gloved hand, allowing you to cool off or stay warm. The search ends with the new feature-packed Altus. Protection: Ultra-light in-mold construction Aerocore construction featuring Koroyd Low-profile regulator adjustable climate control MIPS Brain Protection System reduces rotational forces caused by angled impacts to the head Fit / Integration: VaporFit adjustable fit system XT2 anti-bacterial performance lining Removable ear pads AirEvac ventilation Audio compatible ear pads Features: Tough and lightweight 10 vents Single regulator adjustable ventilation Certification: ASTM F 2040, CE EN 1077:2007 CLASS B Weight (Size M): 16 oz / 450 g