If need to wear glasses while shredding, then you know it can be a hassle to find a functional, practical pair of goggles that will fit with your glasses. Luckily, the Smith Knowledge Turbo Fan OTG Goggles easily fit over your glasses while offering you top-notch anti-fog technology. The two-speed, silent electric fan quickly whisks away any warm, moist air that could form fog, while the 5x Anti-Fog Inner Lens also battles the formation of fog. When you need to wear glasses under your goggles and you want to make sure your view isn't obstructed by fog, the Smith Knowledge Turbo Fan OTG Goggles are perfect for you.