We are sometimes asked if we make earplugs that prevent sound from being heard at all.
However, this is not one of them. The fact is that we humans receive sound in multiple ways. Not only through the ear canal, but also through the skull. Because of this, earplugs are not able to stop all sound.
In addition, in most cases, it would also not be responsible to wear earplugs that block all sound. Thus, while motorcycling, it is important to still be able to perceive important traffic sounds.