Kaenon introduced SR-91® as the answer to all of the shortcomings of existing lens materials. Glass is heavy and shatters, CR-39 is brittle and not impact-resistant, while polycarbonate offers a dull view and scratches easily. Our polarized SR-91 was tested in independent labs and confirmed to be the only lens that offers razor-sharp clarity, impact-resistance and glare-reduction all in one ultra-lightweight and durable lens. All of the good. None of the bad.

But our testing doesn’t stop there. Kaenon’s SR-91 lens is constantly relied upon and then validated by the world’s top athletes and adventurers – and it always lives up to the task. Available in a variety of options, from lens color (grey, brown, copper, yellow), Light Transmission Level and Polarized SR-91, there is an SR-91 lens fit for every scenario. Explore our full range of lens options and perfectly tune your vision.

The high-performance, patented Kaenon SR-91 lens comes standard in everything we make, in a variety of options – including prescription. SR-91 Rx is available in Single-Vision and our Freestyle™ Progressive. And every frame is Rx-adaptable.