Riddell Axiom combines our deep experience in athlete protection and helmet technologies to deliver our most advanced helmet platform with an interior fit and protection system that eliminates fitting foams and air adjustments. By leveraging Riddell's database of thousands and thousands of Tru-Fit head scans coupled with an athlete's head circumference to determine the optimal shell size and energy management components, this Axiom model provides a similar fit and feel to Tru-Fit -using its signature combination of interior liner pads-without requiring a 3D head scan. Features: InSite Smart Helmet Technology* Expanded Flex System Frontal Protection System Factory-Installed Optically Correct Visor Cam Loc(TM) Retention System All-Points Quick release(TM)