Secure, comfortable fit
"As a runner & swimmer, I've lost so many plugs (even lightweight silicone ones) as they somewhat easily fall out. The design of the double flares on these make them so secure I don't have to worry about a thing, but are still easy to pop in and out. I usually wear them 'backwards' with the simple matte black facing forwards and cute little owl peaking out the back. It's sad to see this whole "3D" silicone series seemingly being discontinued, hope UBJ bring back similar ones in the future."