Earplugs are effective at keeping out unwanted or damaging sound, but only if they fit well and make a seal around the ear canal.
A custom earplug is an earplug that is made specifically to the shape of your ear. A mold of your ear is taken, and then a vinyl or silicone plug is made from the mold.
The advantages of a custom earplug are two-fold:
- The earplug fits much better. Since it is specifically shaped for your ear, the seal is much better and the earplug is less prone to falling out.
- The earplug is flexible. This means that as the ear canal distorts (through the daily actions of chewing, speaking or yawning) your earplug will reshape and stay snug.