These non-vented goggles provide comfortable wear with a soft rubber gasket that distributes pressure evenly. They are designed to fit over most prescription glasses and offer a wide field of view. High-velocity impact-tested lenses provide military-grade protection. A scratch-resistant exterior and long-lasting fog-free interior keep vision clear, while D3, D4, and D5 ratings add protection from splashes, dust, and fine dust or aerosols. The adjustable strap helps maintain a secure, complete seal.