STREAM 2 SEA Reef Safe Anti-Fog Spray for Swim Goggles, Snorkel, Scuba & Ski Masks - Defogger for Scuba Diving, Snorkeling & Swimming - 2 Fl Oz

Use a small amount on the inside of the lenses.  Use your finger to rub completely over the lens. Add a small amount of water and rub the defogger to remove any streaks. Pour the liquid out and you ar...