Agilis MIPS Bike Helmet Recreational meanwhile a Gravel Dual Compound features Bike Part meanwhile a Gravel Dual Compound features a firmer center to maintain straight line speed with medium density shoulder knobs that bite when cornering and a fresh new design The fit is comfortable and secure thanks to our adjustable Roc Loc 5 Mips system that combines fit and positioning adjustments while integrating with Mips technology for an added measure of protection in the event of an angled impact and is molded from a tough polycarbonate that's fused permanently to the EPS foam liner using our In Mold process to enhance durability and ventilation without excess bulk