Just got the XL mask today. Tested it out in the pool. Worked awesome! Zero fog. Pretty impressed. Took just a few minutes to get used to. Looking forward to testing it out in the ocean. Field of view is nice. I've got a short beard and no water entered the mask. Any water that did manage to enter was purged out automatically just by natural use. The design is pretty impressive. I'm definitely taking this with me on my next Caribbean vacation!

Easy to install. Worked well with the Crosstour camera.

Camera held a bit high, frequently out of water. Limited vertical angle adjustment.

My partner are new to snorkeling, and bought these for our first cruise/ excursions. Very good fit and seal, and very easy to use. You can breathe normally, either through the mouth or nose, and your lips/jaw don't get tired supporting a conventional snorkel. The design brings air in at the top of the face mask and exhausts out a one-way valve by your chin... which keeps it defogged! I bought the optional eyeglass frame, and had exact prescription lenses ground for it at my optician. The frame snaps into the mask, giving me 20/20 vision underwater! The only downside is that it's quite buoyant, so it takes a little extra effort to fully submerge and swim underwater with this as opposed to conventional masks. However, this is a minor annoyance, well outweighed by the benefits. What a great product!

Bought two and used them in Mexico, make sure you get the right size for your face and test in your bathtub before you go.