Our Performance Safety Glasses are designed with high impact, fog-free lenses. This protective eyewear passes a high-velocity impact test, providing you with lenses with military-grade impact protection. The protective glasses have fog-free lenses, so they stay clear in the toughest conditions and are coated to reduce scratching. These MILWAUKEE® Performance Fog-Free Safety Glasses are available with yellow or gray lenses. The yellow-tinted lenses make environments appear brighter, making them ideal for working in low light, and the gray are best for transitioning between indoor and outdoor work.