Airbag impact protection is only effective when the airbag is fully inflated and the jacket is closed properly (zip all the way up and snap closed, or plastic buckles fully fastened). The device must be connected to the motorcycle or scooter in order to inflate the vest and be protected.
The Airbag device is designed to prepare for impact and minimize its consequences, without however guaranteeing absolute protection against all injuries. It inflates close to the body to stiffen and maintain the trunk in a neutral position, and during impact the impact energy is absorbed and dissipated over the entire surface of the device.