C4 Pro Carbon Tempest Helmet How could one take the C4 Pro and make it even better experience, not only from a safety but also a rider comfort perspective brings their Formula 1 racing technology to the C4 Pro to package it in a 100 carbon fiber shell making it the lightest modular helmet ever. With the same unmatched, German-engineered quality and the latest in aerodynamics, the C4 Pro carbon is one of the most compact, advanced modular helmets available to the touring-minded motorcyclist. Featuring a new and improved Coolmax inner liner and 2 shell sizes, the C4 Pro Carbon is the new standard for ultra-premium touring helmets. Note: Helmet is slightly narrow around the chin bar and may not fit comfortably if you have a round face or longer chin. Features: 100 carbon fiber shell Aerodynamically tuned shell to mitigate fatigue Integrated one touch sun visor Coolmax interior Complex multichannel ventilation system Integrated antenna Pre-installed speaker and microphone Plug & Play prepared for the SC1 communication systems Extra large anti fog lens insert: Wide field of vision in any riding position 2 shells: XS-LG, XL-3XL DOT approved Outer Shell: The outer shell of the C4 Pro Carbon Helmet is constructed from 100 carbon fiber. 100 carbon fiber Perfected aerodynamics for high speed stability Directionally stable No oscillatory tendency No buffeting Spoiler integrated into the helmet shell/neckroll SC1 Systems: The C4 Helmet comes equipped to accommodate the SC1 System (sold separately). To guarantee ideal reception, the C4 Pro comes out of the box with integrated antennae to boost reception, as well as pre-installed speakers and microphone. Integrated antennae for optimum reception at all times Pre-installed speaker and microphone Plug & Play prepared for the new SC1 communication system EPS: The EPS foam impact liner uses a sectional, multi-part design to ensure the highest shock absorption for various impact scenarios. This complex segmentation guarantees enhanced force absorption and distribution. Made of specially-optimized EPS foam Complex multi-zone sections allows optimal shock absorption Inner Lining: The comfort liner of the C4 Pro Helmet utilizes Coolmax, a fabric inherently antibacterial, washable and fast-drying. A seamless headliner and integrated spectacle channel ensure maximum comfort for all riders. Coolmax fabric Antimicrobial Removable/Washable Quick drying Optimized secure fit Variable venting for effective ventilation Ventilation: The C4 Pro features an intricately designed multi-channel ventilation system inside the helmet shell, resulting in extraordinarily quiet, substantial air flow. Inlets in the forehead and chin area ensure that you keep a cool head. Face Shield: Extra large anti fog lens for the widest possible field of vision, both centrally and peripherally through the oversized eyeport . Extra wide viewport Anti-fog lens-ready face shield Anti-fog lens insert included Note: Intercom range may be reduced due to the nature of the carbon shell.