Full Face Snorkel Mask with Nearsighted Prescription Lens Water Sports Camera Mount Promate Prescription(Rx) Full face Snorkel Mask for nearsightedness Rx lenses (tempered glass) available from -1.5 to -6.0 by increments of 0.5, different prescription(Rx) for each side obtainable Innovative design allows you to easily breathe through your nose and/or mouth Physical anti-fog technology stops all water from entering the breathing tube and mask and keep your mask dry and clear Easy to adjust size head strap and comfortable silica gel allows you to enjoy snorkeling