Very good, quite waterproof. I kept getting ear infections in the summer at the sea, and this year I avoided them with these. You can actually hear quite well while wearing them.

Unfortunately, the reviews misled me. In order to put the earplugs in your ears, you need to have a degree. I made many attempts but they do not fit in any way. And at some point when I thought they were in because I felt them stable, with 2 dives they came out completely. I used alpine earplugs for years, very comfortable, no water and they are very easy to put in, but over time the material loosened and I had to change them. I shouldn't have bought the arena ones for 10 euros, they are garbage. I will definitely go back to alpine.

Very good application!! However, a minimal amount of water will be added, which is not bothersome though!! Among the ones I have tried, and they are not few, they are the best!!

I bought them for my son because he kept getting ear infections every time he went into the sea. Since he started using them, he no longer has any discomfort in his ears. Water doesn't get into his ear. He struggled a bit the first time until he found the way to wear them, but now it's very easy for him to use them on a daily and regular basis. He uses them both in the sea (with dives of his head underwater) and in the shower.

It is the second time I buy the product, due to the loss of the previous ones. I consider it to be the best and safest in earplugs, I have been using it for four years and there has never been any problem. I highly recommend it!