Newly designed ventilated nosepiece allows heat to dissipate from nose bridge to reduce fogging. Soft dual injected rubber temple tips and flexible nosepiece provide non-slip comfort. 9 base curve lens provides excellent side protection against airborne particles. Lightweight, frameless protection is ideal for all-day wear. Lenses provide 99% protection against harmful UV raysNewly Designed Ventilated Nose piece Allows Heat To Dissipate From Nose Bridge To Reduce Fogging Soft Dual Injected Rubber Temple Tips And Flexible Nose piece Provide Non-Slip Comfort 9.75 Base Curved Lens Provides Excellent Side Protection Against Airborne Particles Lightweight, Frameless Protection Is Ideal For All-Day Wear Exceeds ANSI Z87.1-2010 High Impact Requirements Meets MCEP GL-PD 10-12 Ballistic Standards CAN/CSA Z94.3-07 CE EN166 Certified