HL100 Series Shooting Over The Glass (OTG) Glasses meets ANSI Z87.1-2015 (High Impact) and tested by Honeywell to meet the requirements of the CSA Z94.3 standard. Made in a traditional eyewear style, these shooting glasses fit easily over most prescription eyewear. The single polycarbonate lens offers a wide viewing area, and superior optics for clear viewing. Integral side shields provide excellent coverage and include indirect vents to help prevent fogging in hot, humid environments. The clear lens of these safety glasses is suitable for most indoor and outdoor settings.