The Dissident Comp packs the same awesome protection & ventilation features of the Dissident into a composite shell which allows us to offer this exceptional gravity helmet at a wallet-friendly price. Engineered to protect gravity bike park & downhill riders. Meets the ASTM DH safety testing standards for impact protection & chin bar performance. Lightweight composite shell.4th Dimension Cooling System provides superior comfort. Helmet EJECT™ system compatible. Leatt™ brace compatible. Removable washable liner & cheek pads.