You need to try these to best appreciate them. The silicon in the pads is in a gel state, not liquid, so even if punctured it will not leak. The Silicon molds itself around the contour of your head, offering even more comfort and better sound protection that the normal sponge based ear pads.
The Silicon Gel pads really shine when you use the ear protection with shooting glasses, as we usually do. They mold themselves around the arms of the glasses, improving sound protection and preventing pressure of the glasses against your head