"PROGRESSIVE PROTECTION" MOTO-9S FLEX is an advanced helmet that has passed the traditional performance and high protection capabilities that have been cultivated by BELL. The industrys first innovative system "Flex System" features three layers of impact liner with varying densities, which helps to disperse impact more comprehensively and reduce rotational energy transfer. The flexible liner allows for a closer fit to each head shape. It adapts to a variety of head shapes while also improving ventilation inside the helmet. Genuine Dirt Freak products include a special fitting pad that enhances the fit and feel of the helmet. (1 set of soft/hard) Standard: Snell M2020 Standard/MFJ Certified (race only not for street use) Weight: 3.3 lbs (1.52 kg) (measured by size M).