Stay protected and comfortable with Pyramex Sitecore Safety Glasses. These glasses adjust to three different lengths for best fit. The ratcheting temples are flexible and ventilated for air circulation. They are ANSI Z87.1 high impact rated and have scratch-resistant lenses. The glasses also feature a built-in rubber nosepiece and some styles have anti-fog or mirror lenses. Look great and remain safe with Pyramex Sitecore safety glasses.