I haven’t used my mask yet, I purchased for an upcoming cruise. What has impressed me was the super fast order fulfillment and shipping, so fast that I emailed the company to make sure they received my RX. They emailed me back almost immediately and stated they had and that the goggles were good to go! I received the order just days later and I can see great out of them, so good that you would think they were custom made lenses! They seem to fit well, they passed the suction test, and are comfortable. I can’t wait to use them!