Advanced UV Protection: The Calabria 91348 Safety Glasses are the ideal option for superior eye protection, effectively blocking 99.99% of UVA and UVB rays. The use of advanced polycarbonate lenses not only shields the eyes from direct sunlight but also helps minimize UV-related eye discomfort.Integrated Bi-Focal Technology: These glasses feature expertly designed bi-focal lenses that merge the functionality of reading and safety glasses. With magnifications available from +1.50 to +3.00, they provide a clear, undistorted view, making them indispensable for precision tasks that require both near and far viewing.Robust yet Lightweight Construction: Crafted with a high-strength black nylon frame, the Calabria 91348 glasses provide resilience against wear and tear while maintaining a light feel on the face. This combination ensures comfort throughout the day, suitable for long hours of wear in various settings.Superior Design for Enhanced Safety: Featuring a wrap-around design, these glasses extend protective coverage around the eyes, significantly minimizing the risk of airborne debris or sudden impacts affecting the area around your eyes. The shatterproof polycarbonate construction further enhances their durability and safety, making them a reliable choice in various environments.Precisely Measured for Optimal Fit: The dimensions of the Calabria 91348 Safety Glasses are engineered for a universal fit, accommodating various facial structures comfortably. The lens width measures 78mm (3.07 Inches), lens height is 41mm (1.61 Inches), frame width is 142mm (5.59 Inches), temple length is 120mm (4.72 Inches), and the bridge width is 16mm (0.63 Inches) wide. These dimensions are also provided in both millimeters and inches to assist users in finding the ideal fit, enhancing the overall effectiveness and wearability of the glasses.