The ultimate ear protection! Developed by a surfing physician since 1977 to keep water out of the individual’s ears while bathing or swimming that also come with a Leash to help prevent loss. The Doc’s ProPugs are Designed to protect the ear from, impact, loud noise, and high frequency noise, while still allowing you to hear normal sounds. They are Suitable For Water Sports, Scuba/Free Diving, Motorcycles, Light Industrial and can block up to 20db. Doctors recommend Proplugs.