The Ztek Clear Glasses' economical wrap-around single lens provide full panoramic view. The soft non-slip rubber temple tips provide a non-binding fit. These clear lens are designed for indoor applications that require impact protection. Glasses offer protection from excessive glare, 99% protection from UV-A rays, and 99% protection from UV-B rays. Lenses are 100% polycarbonate and scratch-resistant. They exceed ANSI Z87.1 high impact requirements and are CE EN166 certified.