The mask is amazing but it requires a little attention. Its silicone is very soft, resulting in sensitivity to leaks if not placed correctly. The correct way to place it is to have it touching the face without being tight at all. Truly, if worn correctly, it has no issues and you forget that you're wearing it. Without any antifog gel, the mask becomes foggy, so this is also one of the essential accessories before use. This is the third summer that I have been using it and I am very satisfied.