The Custom Molded Earplugs have been tested for swimming and they do well at keeping most of the water out. It is important to get a good fit with the silicone tip as well as the mold.
For use while swimming or water sports, we recommend only using with the silicone tips. We do not recommend using the foam tips for water usage.
For more information on getting a good fit, please visit Earplug Molding Tips