FLASH ACCESS helmet has been tested according to EN 397:2012 including optional requirements with an exception of the chinstrap buckle, which is tested according to a norm for mountaineers’ helmets EN 12492:2012. According to this norm the buckle releases at a force no less than 50 daN. Practically, it means, that you significantly reduce the possibility of losing the helmet by inadvertently clinging solid object by a chinstrap or a shell of the helmet or by taking the hit of a falling object. Unintentional loss of the helmet may lead to head injuries in case of numerous falling objects or loss of the user coordination or consciousness with following fall from the height. On the other hand, strong chinstrap buckle increases the possibility of strangulation. Selection of the right helmet should be considered by risk analysis made by a competent person.