The Challis is Proof's metallic take on the popular trapezoidal style frame. With this combination of unique materials, it's a great frame to show your personal style without following the crowds of black acetate frames. The Challis is part of the Aluminum Collection which is 100% recyclable. It is the perfect blend of nature & man, with its wood temple features & quality crafted aluminum body. Extreme attention to detail is placed in each frame made, with custom laser engraved quotes on the inside arm of each pair of glasses. Every pair of glasses comes with a microfiber pouch to protect and clean the glasses. Features: - Handcrafted from recycled aluminum & sustainably sourced wood - Polarized anti-reflective lens | 100 UVA-UVB protection - Spring-loaded hinges-fits most face shapes & sizes - Water and sweat-resistant - Quote Inside: Do The Unexpected - Comes with a microfiber pouch Sizing: - Lens Width: 50.17mm - Lens Height: 39.77mm - Bridge: 20.25mm - Temple Arm Length: 143.94mm