The Preston is a classic frame with a compact rectangular shape. Designed with a timeless style, the Preston is versatile and fits a wide range of face shapes & sizes. It is the perfect blend of nature and man, handcrafted with materials sourced from 100% sustainable forests.  

Proof RX frames are prescription ready, meaning you can use them with the clear lens they come with or take them to a local eye care professional to have your prescription filled.

Extreme attention to detail is placed in each frame and every style features a unique laser engraved quote on the inside arm.  Every frame purchase comes standard with a folding cork case and microfiber cloth to protect and clean your frames.

Proof has been pioneering sustainable eyewear from the beginning and is committed to making a positive impact through our Do Good initiatives in our local & global communities. We are proud to partner with the Eden Reforestation project to help combat the impacts of deforestation. With each frame purchased, five trees are planted. To learn more, please visit our Do Good page.