What’s the point of a mask if it’s letting in water, right? This all depends on the seal around the mask. It needs to be a feathered, double skirt seal. Silicone is the preferred material for seals. And as a plus, the feathered double skirt will make for a comfortable seal against your skin.
When you’re snorkeling, you certainly want to avoid inhaling water through your nose. And when you dive below water, you need to be able to equalize, which is why you need eye pockets with an enclosed nose.
If you use a regular plastic glass snorkel mask, it’ll likely fog up too much, worsening your vision. Otherwise, if you use a glass mask, it’ll shatter due to accidents or underwater pressure, so you won’t be able to wear your mask for scuba diving. Tempered glass, however, is shatterproof and can withstand underwater pressure, making it the best option.
Ultimately, this is a matter of personal choice. But if you want our take, opt for a low-volume mask that sits closer to your face. Less volume means just the right amount of trapped air, no more. It’ll also reduce its drag in the water and make it easier to clear out water and to equalize when submerging.
We’ve briefly alluded to a feature that plays into the mask’s comfort: feathered, double skirt seals, but there’s more to it than that. For a mask to fit you comfortably, it needs to have a wide head strap with touch adjustment buckles.
The range of vision you’re looking to get will determine the type of lens you need. If that’s peripheral vision, consider buying shaped lens panels because they allow you to see up and down and left and right.
Corrective lens masks are designed for all the folks with prescription glasses or contact lenses. Some even have interchangeable lenses!
Certain colors are lost at certain depths in the ocean, such as red at 3m and yellow at 6m, but color-correcting masks can revert perceived objects to their true colors underwater.