Gateway Safety's Wheelz Goggles prevent fogging while offering optimal eye protection. Including a patented Whirlwind ventilation system, which circulates air through the inner frame area between the face and lens, ten vents along the frame's brow area and 10 additional vents on the frame's underside create a strong "whirlwind" of air that helps clear the fog and maintain unhindered vision at all times. Unlike big and bulky traditional goggles, Wheelz has a compact and lightweight frame made of a soft, flexible material for all-day comfort. An elastic head strap easily adjusts to ensure a safe, snug fit. Meets ANSI Z87.1+ and CSA Z94.3 standards.