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 excellent for transitioning between indoor and outdoor work.