Introducing the next level in brain protection. The 6D ATR-2 is the most advanced energy management device ever manufactured for off-road motorcycle competition or recreational riding. Infused with the exceptional DNA of the original ODS technology, but evolved to a whole new level with high-tech materials and design influenced by 6D's work inside the NFL's Head Health Challenge III competition. A helmet with in a helmet, the ATR-2 with advanced ODS is evolved to provide improved performance in both linear and angular acceleration mitigation, and is also easily rebuildable for a potentially longer service life. This improves rider safety and saves the consumer money. Rebuildable Advanced ODS System: - Replaceable inner EPS liner. - Multi-Impact outer EPP liner. - Progressive EPP Damping Towers. - Low-friction disks. - Isolation dampers. - Increased ODS Displacement Travel (+30%). - Improved Linear and Angular acceleration mitigation. Shell: - Optimized light weight Tri-Composite Shell. - Cervical protection zone at the lower rear shell area. - Brow rib increases shell integrity above the eyeport. - Clavicle cut-away. - 9 intake ports and 6 exhaust ports work in unison with the Air Gap Ventilation System. Helmet Features: - Removable, washable comfort liner features Genuine Dri-Lex anti-bacterial fabric. - Emergency Quick-Release Cheek Pads. - PU-over molded EPP lined chin bar includes 6D's exclusive sternum pad. - Goggle band integrated shell recess at the eyeport area improves goggle fit and seal. - Shear-away visor screws. - Nose guard provides improved roost protection. - Titanium D-rings. - Lighter overall weight. - Exceeds DOT, ECE, AC and ASTM standards. - 3-year limited warranty.