Review on Cozia Design Adult Snorkel Set - Full Face Snorkel Mask With Panoramic 180° View, Adjustable Swim Fins, Anti-Fog And Leakproof Scuba Mask For Optimal Snorkeling Experience by Jacob Kuntz

It was my best snorkel gear experience. Note that I'm not a professional, nor do I play one (or anything else) on TV. I snorkel about every couple of years, but try to pack as much into those efforts as possible.Anyway, I totally recommend the Cozia set with one comment and one reservation. First the good stuff -Vision is great. There is distortion around the fold in the mask, but the side windows worked better than I expected. I was continually surprised by objects in my peripheral vision. Peripheral vision up and down is also enhanced. The seal is also better than I expected. I have a full beard, and while I keep it pretty short it's still a problem with traditional masks. No leakage into the mask through the neck/sideburn area.The full face design gets a lot of credit too. You breathe through your nose. Go figure! You can also turn your head to either side while breathing, since the "snorkel" is in the middle of your head. I would turn one way and cringe as I reached where the side snorkel would catch, then do the same the other way, but the catch never came.The aforementioned comment: The basic design of the full face makes diving while wearing it difficult. Just the way it's built. With a traditional mask and snorkel, you can push the mask against your face, get a short lived turbo-vacuum effect and drop below the surface. Since the mask and snorkel are plumbed to each other that doesn't work with the full face. You could probably drop the snorkel till the ball valve closes, then do the push, but I didn't figure that out till we were home so couldn't test it out. I tried diving a couple of times with it, then gave up. This is part of the overall full face design, not a problem specific to Cozia.The reservation - I have a big head. 7-5/8 to 7-3/4 hat size. While the mask fit fine, the adjustment straps on the mask were at the end of their travel. When I tried to tighten them a bit, they didn't give much, and tended to slide back to the end again. If you're a mega dome, may want to find something a bit larger.