Introducing the latest 6D Kids ATR-2Y helmets with advanced ODS is evolved to provide improved performance in both linear and angular acceleration mitigation. The 6D ATR-2Y is also easily rebuildable for a potentially longer service life. This improves rider safety and saves the consumer money. The kids ATR-2Y with advanced ODS provides substantial improvements in performance over the previous ATR-1 helmets across the entire range of energy demands; low, mid, and high velocity accelerations for both linear and angular accelerations.