This is the Seasoft SeaVue Concentrated Anti-Fog Pump Spray for Scuba Masks and Swim Goggles - 2 fl oz.

Features:

• Spray it on, do not wipe or rinse off for fog free diving!
• Will not harm surrounding silicone or rubber support frames
• Proven, long lasting liquid formula
• Non-abrasive-safe for all lenses and optics

The perfect solution to keep foggy lenses from ruining your dive, always keep a bottle in your dive bag.