I mostly travel by bike in your application. Out of 10 bikers, 9 out of 10 bikers get helmets that know no bounds.The condition is so dirty that I cannot keep it on my head. It seems as if the India of tea is placed on the head. If there is no switch of the grip, then it remains so loose that even after keeping it on the head, it has to be held with the heart. It does not mean to save the time of the customer, forget the safety itself.