The met parachute full face helmet parachute is the trailblazer for a new category of helmets purpose built for enduro mountain biking it combines the protection of a full face helmet with low weight high ventilation and comfort riders buy a full face helmet to have more protection to their face so itrsquos important to know if the chin guard has been stringently tested and passes the astm standard the fact that the parachute is astm certified gives the confidence to the rider that