Skullerz DELLENGER Enhanced Anti-Fog & Scratch-Resistant 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-scratch and 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 and enhanced permanent anti-fog performance that won't wash or rub off for clear viewing no matter the job-particularly useful for those working with dust masks or in extreme temperature change. UV protection filters 99.9 percent of harmful UVA, UVB and UVC rays to keep eyes safe in the sun.