The Abus AirBreaker helmet features an innovative Multi Speed design with a honeycomb structure, offering maximum aerodynamics and optimal ventilation. It's a lightweight, in-mold racing bike helmet with a durable EPS and PC shell, featuring the Zoom Ace adjustment system for a personalized fit and the ActiCage Lite for enhanced stability and head protection. This unisex adult helmet weighs 210g and comes in size M, suitable for head circumferences of 52-58 cm. ABUS is known for its safe, reliable, and stable products across home security, object security, and mobile security.