Stop fogging before it can start! Safe and effective on all lens types and coatings, including anti-reflective lenses. Apply after lens cleaning or should lenses become wet. Easy wipe-on application. Rub lens for 15-30 seconds for fog-free vision, goes on clear, no haze, one application lasts up to all day. Multi-use dry cloth, up to 15 uses per cloth. Ideal for sports eyewear, eyeglasses, sunglasses, camera lenses, binoculars, and scopes. In lab tests, no fog formed after 60 minutes over boiling water or a hundred cycles of heat-and-cold.