General purposes for indoor applications that require impact protection. 9.75 base curved lens provides full side protection. Offers protection from excessive glare. Provides 99% protection from harmful UV-A and UV-B rays. 100% polycarbonate Scratch-resistant lenses. Nose buds secure the glass and prevent slipping while providing a pillow soft fit. Strategic placement of lens insert bi-focals is out of users direct line of vision. Exceeds ANSI Z87.1-2003 High Impact Requirements. CAN/CSA Z94.3-02.