MCR Safety has you covered if you need safety glasses to wear over your prescription eyewear! The Klondike® OTG (over the glass) series features an oversized frame and lens to fit over most prescription glasses! This series has a soft, permanently bonded TPR brow guard to help keep out trash debris. The temple arms are streamlined and bonded with TPR to give the wearer a more comfortable experience. Each Klondike® OTG also features a 3-position adjustable temple length, allowing for a more personal fit. The OG220PF420 has a clear lens and is coated with MCR Safety's MAX6® superior anti-fog lens coating! The real bonus to this eyewear is that it uses UV420 polycarbonate resin, which blocks 99.9% of harmful light rays up to 410nm. If you are searching for the best over-the-glass safety glasses, look no further than MCR Safety! This product meets the ANSI/ISEA Z87.1 2020 standard.