ECE / DOT approved ADAPTIVE IMPACT SYSTEM Polycarbonate alloy shell construction produces an extremely lightweight shell with excellent penetration resistance Impact Energy Cells made of RHEON, the Impact Energy Cells maximize absorption of low speed linear and rotational impacts, reducing forces transmitted to the brain Multi-density Expanded Polystyrene (EPS) Technology provides a softer EPS. Critical zones have been fine tuned for a progressive response to low speed and high-speed impacts Please note: Images are a representation of the item only. Actual item may differ. Some images will show accessories or parts that are NOT included with this listing. Please read the listing title, description and Manufacturer Part Number carefully. When in doubt, simply ask us before making the purcha.