The first mouldable pure silicone ear plugs appeared in 1962, invented by Ray and Cecilia Benner. At the time, these earplugs were valued by swimmers, as well as those trying to avoid harmful noise, for their waterproof qualities.
Silicone earplugs are normally very comfortable to wear, which is why many prefer to use them over foam ones. They fit on the opening of the ear rather than inside of the ear canal.
Although they might not have the highest noise reducing properties, they are easily moulded into shape of the ear, providing a good seal when fitted correctly.
For answers to all common earplug questions, please consult our Earplug FAQ page,