The ESS Universal Prescription Insert is the perfect addition to your eye protection. This insert features a lightweight and comfortable design that fits into any Frame, including sunglasses. The insert offers 100% UVA/UVB protection from the sun's harmful rays and is coated with an anti-fog and anti-scratch treatment to ensure clear, distortion-free vision. The lens also features a distortion-free curved surface for improved peripheral vision and a wrap-around design for enhanced protection. The ESS Universal RX Insert is the perfect choice for anyone looking for superior eye protection in any environment. The U-Rx is the first to interchange across brands in a wide variety of ESS and Oakley® ballistic eyeshields and goggles. The U-Rx™ Insert is designed to be used seamlessly with CrossSeries™ Eyeshields, Profile™ NVG Goggle and Influx™ Goggle platforms. It is also compatible with the Oakley® Ballistic M-Frame 2.0 / 3.0 and Oakley® SI Ballistic Goggle. NOTE: Customized Prescription Lenses to be ordered through your optometrist. Includes:U-Rx Carrier - Holds Customized Prescription LensesESS CrossSeries Eyeshield AdapterESS Profile NVG Goggle AdapterOakley M-Frame Eyeshield AdaperOakley SI Ballistic Goggle Adapter