The PRO-TEC HELMET is equipped with EPS foam and is multi-certified for CPSC, CE, ASTM and AS/NZS 2063:2008. The protective industry jargon in that last sentence means a massive machine smashed this helmet against an anvil in a scientific setting to prove to the world it will keep your precious dome safe when you slam. Features • Specially formulated EPS Fusion Foam • Certified Multi-Impact (ASTM) • Certified High Impact (CPSC) • Deep Fit Design--The PRO-TEC HELMET is equipped with EPS foam and is multi-certified for CPSC, CE, ASTM and AS/NZS 2063:2008. The protective industry jargon in that last sentence means a massive machine smashed this helmet against an anvil in a scientific setting to prove to the world it will keep your precious dome safe when you slam. Features • Specially formulated EPS Fusion Foam • Certified Multi-Impact (ASTM) • Certified High Impact (CPSC) • Deep Fit Design Disclaimer Pedl does not accept returns on helmets