Adopting the silicone skirt, the face mask creates a leak-free seal around your face. Besides, an advanced leak-proof adult snorkel mask with a floating ball stops water from entering the mask.

The fit, healthy 59-year-old had snorkeled before, but this was the first time she'd used a full-face mask. One day when she was out snorkeling, about a week into the holiday, her vision suddenly ...