Virtue VIO Stealth Visor Fan

Take fog fighting to a new level by keeping rain, moisture, and  condensation out of your goggle. Perfect for players who wear glasses or  for circulating air inside your lens. The anti-fog dual pane VIO lens  is supercharged when you add the Stealth Visor Fan so you never have to  worry about your glasses or your lens fogging. Weighs a mere 1.6oz with  two AAA batteries installed.