Was skeptical of the price point considering how expensive prescription dive masks can go for, but I’m super happy with the product and its performance. I was getting tired of mucking around with contacts, and having an Rx dive mask is AMAZING. Good quality silicon, low volume (has been great for free diving as well as scuba), and the fit is perfect; no leaking. If you’re in the fence, don’t be - great mask/lenses for a great deal.