Choose the right foam for your dome. Pro-tec's Certified Helmet combines a lightweight, comfortable EPS foam with a super strong ABS shell to offer up protection you can trust instread of ending up concussed.Injection molded EPS foam liningABS shell, Ventilated holes for airflowWoven chin strap with buckle fastenCPSC 1203/ASTM 1492/ CE EN 1078 Certified