Nothing ruins the day like fogged out goggles! You immediately move
down the food chain from "hunter" to a "target of opportunity."
JT Majik cleaner and anti-fog does the job and has been designed by the company with a long history of leadership in the manufacture of goggles. The dispenser is small and fits easily in your pocket.
It's money well spent!
Note: Do not spray on the inside of thermal lenses.