The Pyramex I Force Safety Anti Fog goggles are a must-have for anyone in the industrial and scientific field. Based on our own experience they provide clear and unobstructed vision, even in the harshest environments... The anti-fog technology ensures that we can work comfortably without the hassle of constantly having to wipe the lenses. The adjustable strap and lightweight design make for a comfortable fit, even during long shifts. One minor con is that the lenses scratch easily if not properly cared for, but overall these goggles are a smart investment for any professional needing reliable eye protection..