Basic everyday economical safety glasses.  INTEGRA FEATURES: Single Lens And Adjustable Temples Ensure Reliable Performance. Replacement Lens Extends The Life Of Each Pair. Select Frames Available With Ratchet Adjustment Temples. Also Available With Ratchet Adjustment Temples SB410SR Exceeds ANSI Z87.1-2003 High Impact Requirements CE EN166 Certified CAN/CSA Z94.3-07 CLEAR LENS: General Purposes For Indoor Applications That Require Impact Protection. Offers Protection From Excessive Glare Provides 99% Protection From Harmful UV-A And UV-B Rays. 100% Polycarbonate Scratch-Resistant Lenses Also Available In Anti-Fog SB410ST