I've got a feeling they ran into some sort of issue with the marina - like the cressi patent or something I mentioned earlier. There seems to be nothing wrong with the design and the quality is outstanding.
It was the outer coating on my sphera that sort of bubbled up for no reason in one area. It badly distorted vision and felt as though it was melted. I thought some goo had gotten on the lense and when I scraped it with a fingernail the coating in that area just flaked off.
I bought three spheras - that one and the one my daughter has both have lenses with visibily more curve in the vertical plane than the one I'm using now. Both also correct nearsightedness to a degree that makes them unuseable with my contacts - but as good as a prescription mask without.
Neither my alien or matrix fog - but they have prescription lenses. The Marina fogs like any new mask - but it went away really fast.
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