The mask left gaps on both sides near my eyes and let water leak in.

Bought several masks for my family to use snorkeling in Mexico and the pieces just don't work well and aren't functional for ocean use. Personally, I tried a number of sizes and the seal is not good which leads to frequently having to unmask to clear water, a process made all the more difficult by straps that have trouble staying the correct length to maintain a better seal. These are ok for pool use, but I would never take them on a serious snorkeling tour again.

Could not believe how cool this was !!! So so much better than traditional face mask and leaky snorkel!

Good product, fast delivery.

My wife and I have been to Hawaii 7 times and many other places where we've snorkeled throughout the years. We now take our adult children. We started with the regular masks in the 90's. Graduated to full face masks years ago. We've had several. Personally, I really like this mask. I've read the other reviews and what a lot of people complain about is garbage. You need to know how to treat this stuff and how to wear it. Many people who only use their equipment once a year for vacation don't get this right. First, sand creates a ton of trouble. Even a little sand in the o-ring area between the snorkel and the tube where the tube attaches will create water leaks coming in the tube. I don't care what brand; I've noticed this on all my full-face masks. KEEP YOUR MASK OFF THE BEACH when you come out of the water. Second, like they say in the marketing stuff, shave... any stubble or facial hair complicates the seal as well as any sand that's in the seal area. Third, don't overtighten the top of the mask against your forehead. I'm not sure how to best explain this; you just need to get the hang of it. But, for a while, I used to keep cranking on the mask to go tighter and tighter and realized that I wasn't letting the seal do its job. You need to go for even pressure across the entire facemask and not have a lot of compression on the top by your forehead. That's it, not too complicated. But, many people do not get these 3 simple points right. If you do, and you have the right size, this mask will work just fine for hours of continuous snorkeling.

Last thing to mention, right where the snorkel tube clips to the snorkel, I cracked the clip (it's mounted on a plate with 4 screws). This is a bummer, when you get in the water, the tube will pop off pretty easily and you're breathing seawater at that point. To me, this seems to be the Achilles-heel of the snorkel. Just be careful when you're pressing on this clip that you don't snap it. I will say that my customer service experience was fantastic (unlike most customer service these days). Yes, I had to email them. Yes, they wanted a picture of my cracked snorkel tube clip. But, once I provided that, they took care of me immediately and in a very short time so that I could have this fixed for my upcoming trip back to Maui in 2 days:) I'm super happy with their customer service.

The mask left gaps on both sides near my eyes and let water leak in.

Bought several masks for my family to use snorkeling in Mexico and the pieces just don't work well and aren't functional for ocean use. Personally, I tried a number of sizes and the seal is not good which leads to frequently having to unmask to clear water, a process made all the more difficult by straps that have trouble staying the correct length to maintain a better seal. These are ok for pool use, but I would never take them on a serious snorkeling tour again.

Could not believe how cool this was !!! So so much better than traditional face mask and leaky snorkel!

Good product, fast delivery.

My wife and I have been to Hawaii 7 times and many other places where we've snorkeled throughout the years. We now take our adult children. We started with the regular masks in the 90's. Graduated to full face masks years ago. We've had several. Personally, I really like this mask. I've read the other reviews and what a lot of people complain about is garbage. You need to know how to treat this stuff and how to wear it. Many people who only use their equipment once a year for vacation don't get this right. First, sand creates a ton of trouble. Even a little sand in the o-ring area between the snorkel and the tube where the tube attaches will create water leaks coming in the tube. I don't care what brand; I've noticed this on all my full-face masks. KEEP YOUR MASK OFF THE BEACH when you come out of the water. Second, like they say in the marketing stuff, shave... any stubble or facial hair complicates the seal as well as any sand that's in the seal area. Third, don't overtighten the top of the mask against your forehead. I'm not sure how to best explain this; you just need to get the hang of it. But, for a while, I used to keep cranking on the mask to go tighter and tighter and realized that I wasn't letting the seal do its job. You need to go for even pressure across the entire facemask and not have a lot of compression on the top by your forehead. That's it, not too complicated. But, many people do not get these 3 simple points right. If you do, and you have the right size, this mask will work just fine for hours of continuous snorkeling.

Last thing to mention, right where the snorkel tube clips to the snorkel, I cracked the clip (it's mounted on a plate with 4 screws). This is a bummer, when you get in the water, the tube will pop off pretty easily and you're breathing seawater at that point. To me, this seems to be the Achilles-heel of the snorkel. Just be careful when you're pressing on this clip that you don't snap it. I will say that my customer service experience was fantastic (unlike most customer service these days). Yes, I had to email them. Yes, they wanted a picture of my cracked snorkel tube clip. But, once I provided that, they took care of me immediately and in a very short time so that I could have this fixed for my upcoming trip back to Maui in 2 days:) I'm super happy with their customer service.