Met parachute helmetmets parachute helmet is the lightest astm certified full face helmet in the world and offers the best level of safety in its class parachute is the trailblazer for a category of helmets purpose built for enduro racing mets parachute combines the protection of a full face helmet with low weight high ventilation and comfort astm standard chin guardriders buy a full face helmet to have more protection to their face so its important to know if the chin guard has been strin