The Classic certified is equipped with EPS foam and is CPSC/CE certified. 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. Pro-Tec does the science so you don't have to. Our job is to keep you safe; your job is to go session the park, ride the rails, and have fun. Protection for Progression!