This is an old thread, but thought it worth trying - I have heard that the Spheras aren't going to be made anymore - has anybody else heard that? grrr Just as I finally find a low volume mask that fits.

Having used them for two years now I tend to agree that the durability is questionable as I am on my thrid mask now. The first one I replaced under warranty because the lenses kept popping out and the second one I replaced after about a year when the lenses became so badly "pitted" that I couldn't see above water (ok under).

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