Full Face Snorkel Mask, 2nd Generation from Snorkle-FREE - Free your Mouth and Nose, Unobstructed 180 degree View with Anti-Fog and Double Air Flow Technology Prevents Water Leaking While Submerged Snorkle-FREE snorkel Mask that is full face freeing your mouth and nose Polymer sphere prevents water from entering the Snorkel-FREE when submerged underwater, and easily opens when the user surfaces without having to blow water out Snorkel-FREE mask offers users unobstructed 180 degree field of vision, and prevents wearer from fogging up by a double air-flow system that is identical to the system used in domestic extraction fans Snorkel-FREE enables you to see and breathe normally as on the surface. This makes snorkeling more fun and more accessible. Breathing in a tube can be can be Claustrophobic and prevents natural breaths