A top choice of US Special Forces groups, the ESS Eye Pro Profile TurboFan deliver complete, uncompromised visual clarity for the tactical operator or avid outdoorsman seeking reliable and protective eyewear. These goggles use a fan-powered anti-fog system to pump out humidity at 13,000 rpm while drawing in fresh air through the lower part of the frame, preventing the lens from fogging. This fan is powered by a single AA battery, runs for up to 150 hours on a low setting and features "auto-off" electronics to maximize battery life. The 2.8 mm high-impact polycarbonate lenses block out 100% of harmful UV rays, and are treated with an ESS ClearZone FlowCoat to eliminate scratching and fogging. With antimicrobial OpFoam padding to sit comfortably against your face, these goggles are designed to protect in any environment.