HJC I50 Spielberg Adult MX HelmetThe HJC i50 uses SLID (Sliding Layer Impact Distribution) technology that helps to redirect energy exerted impacts on the brain by reducing rotational acceleration caused by oblique impacts. SLID is located in the helmet interior and is an advanced gel material with flowable properties. This allows the layer to counter the rotational acceleration, like a slip, thus dispersing the impact when a multi directional impact occurs. The HJC i 50 Helmet also