10 of 10 people found the following review helpful
Ergo Earplugs - Snug Fit,
This review is from: Speedo Ergo Ear Plugs (Electronics)
Bought these Ergo earplugs after having had to return the more modern Biofuse type because they were too loose and did not provide a seal. These Ergo earplugs are completely the opposite, and provide a nice secure snug fit.