Headband features ratchet adjustment for perfect fit and quick fit retainer. Foam padding forms a perfect seal to keep out dust and airborne particles. Lens insert strategically placed out of the user’s direct line of vision. H2X Anti-fog Lens Technology blocks out fog, mist, sweat and steam. 9.75-Base curved lens provides full side protection. Lenses are treated to self-seal small scratches. Lens and frame are vented to increase airflow. Offers protection from excessive glare. 100% Polycarbonate lenses provide 99% UV protection. Interchangeable temples/headband included with each pair. Meets ANSI Z87.1+ High Impact standard. Certified to the requirements of the CSA Z94.3 standard.