Comments about McNett Corporation Sea Drops Mask Defogger:

I use Sea Drops to keep my glasses clear while kayaking in cold weather, on a very cold river and they work for a couple hours before I start having fogging problems. I have found that for this application, it works best to rub some drops on the lenses and rinse off the excess rather than letting the solution dry on the lenses and buffing it clear as suggested in the instructions.