Skullerz DELLENGER Anti-Fog Safety Glasses feature adjustable temples that shift up or down and lock into place for a custom fit on a variety of face sizes. These safety glasses feature tough anti-fog polycarbonate lenses to protect against impacts and filter 99.9 percent of harmful UVA, UVB and UVC rays. The rimless design makes for a lightweight and comfortable fit and maximizes a full field of vision. A contoured nose bridge won't slip or pinch and the flex-fit temples reduce pressure and provide stay-put all-day comfort. The lens features Fog-Off technology for durable scratch-resistance that won't wash off or wear off for fog-free viewing no matter the task.