FOGGIES is the only anti-fog towelette that not only defogs, BUT CLEANS the lens at the same time! Tested by numerous athletes, FOGGIES is perfect for swim, snowboarding goggles, cycling and running lens, scuba and ski masks! Simply wipe a thin film of FOGGIES onto the inside and outside of the surface then let dry. Seconds later, the FOGGIES solution disappears and you are left with crystal clear vision that will not fog up under the most extreme conditions. Recommendation…reuse the FOGGIES wipe multiple times by keeping the wipe airtight.