Fan-powered anti-fog system exhausts humidity at 13,000 rpm; Rugged PowerPod runs fan for 150 hours on a single AA battery; Low-profile night-vision-compatible frame with wide field of view; Anti-microbial OpFoam face padding increases comfort & fit; Advanced ESS ClearZone FlowCoat lenses eliminate fog inside & prevent scratches outside; Full-perimeter ventilation & filtration system minimizes lens fogging & filters airborne particles; Patented Outriggers position strap for optimal helmet compatibility; Interchangeable 2.8mm high-impact Polycarbonate lenses; Distortion-free optics & 100% UVA/UVB protection; Black Frame; Clear & Smoke Gray Lenses