The New HJC CL-X7 off-road helmet packs more advanced technology and value into its shell than any other helmet in its class. The lightweight Polycarbonate composite shell is 3D modeled to deliver the maximum comfort, fit and style. Extra-large eye port for maximum visibility, superior google fit and glasses groove for riders who wear prescription eyewear. HJC’s wind tunnel tested ACS- Advanced Channelling Ventilation system allows maximum airflow to keep you cool. The helmet lining features Speedcool anti-bacterial fabric to wick away moisture and keep you focussed on the track. The liner is removable and washable.