Wiley X Guard Advanced Safety Sunglasses. The Wiley X Guard is ready for virtually any task. The interchangeable lenses, available in a 2 or 3 lens kit, can handle a variety of lighting conditions. A Military Ballistic Rating ensures your eyes are protected on and off the fire line. The low profile frame and pliable bayonet temples are comfortable for all day wear. The curve of the Selenite polycarbonate lens provides ultimate peripheral protection, and hugs the cheeks in a manner that ward away dangerous partials. The Wiley X Guard is equipped with an air permeable Brow Bar to avoid dust and debris from above, while doing double duty as a built-in sweat band. Wiley X Guard is certified to ANSI Z87.1-2015 high velocity and impact standards, CE EN166, and MIL-PRF-32432(GL) military ballistics standards.