Bought this asa Xmas gift for my husband and it works greats above water the materials are comfortable and it doesn't fog or gets water inside the bad thing is that once underwater the mask doesn't let you inhale or exhale the black silicone sticks to your face making it hard to even exhale if you are using it for above the water snorkeling I 100% recommend but for underwater snorkeling nope do not use you would not last long before needing to go to the surface

We used these in Hawai'i and snorkeled every day! They work perfect. No fogging, no salt water in your mouth, no leaking, fin and booties fit great. Excellent purchase. And we're glad we didn't rent in Hawai'i, it was nice to have our own gear.

We purchased four sets of snorkeling gear as gifts for Christmas for our family to use on a family vacation. The gear did not disappoint. It was easy to use and the quality of the product was excellent. It made for a great and stress free family vacation. I would definitely recommend.

I have always used regular snorkel sets when we go to the beach. We live on the west coast so the bay is far calmer and ideal for snorkeling. When my friend had this set I had to get my own. I am so glad I did! It takes the stress of snorkeling, swallowing water, foggy mask out of the equation. I was able to peacefully snorkel and not once did I get any water in my face or did I accidentally swallow sea water. Every single person in our group loved using it, we were like little kids fighting over who had next. I do recommend that you measure your face and get the right size. I ordered the large because I tend to have larger face frame and it was a perfect fit. My friend that had a smaller face was able to use but did have the same suction that I did. I like that it has a automatic stopper so whenever I did dip lower then the water line I didn't get any water in my mouth at all. I wish they made these smaller for my daughter who is five to be able to use. It came with flippers as well which was a good addition to this. The flippers were a little stiff but very well made and are adjustable to fit anyone's size. It also comes with the netted bag which helps with keeping it dry and in one place. Overall would highly recommend. And we've had our friends order while at the beach because they loved it and wanted their own.

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.