2 Pack -2 Oz Sport Bottle of 500 PSI Mask Defog with Caribbener Model:

Love this stuff, best antifog, I started out using it since day 1, have seen many others with SeaDrops, Spit, etc and theyre the ones always borrowing my 500PSI every trip! I am now known to carry "the good stuff" and typically end up with a circle of about 5 divers asking me for drops on their masks at some point every boat trip. Lol, 500PsI is my favorite anti-fog by far. The carabiners make it great to take in my drysuit pocket on dives. No leaks so far diving with the bottle every dive, solution is always nice and thick like toothpaste.

This stuff works but not great. Sometimes I had no fog for an hour or so and sometimes it fogged up two or three times during a one-hour swim in the pool. This is about the same performance as I have with Johnson and Johnson baby shampoo at one fifth the cost. The packaging was the real attraction for me . It's easy to clip on to the outside of your scuba bag for easy access. You make the call

Great for scuba mask

Doesn't work well. My glasses still fogged up after three applications. try something different.

Best defog I’ve ever used...from dive instructor.