Pyramex Safety - Itek - Clear Frame/Clear Anti-Fog Lens - 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. 9.75 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 rays.