The Bishop is made from Plant-Based Resin, using oil from castor beans as a natural, bio-based plastic. Featuring bold athlete inspired colorways and effortless style, this sunglass protects the Earth and all its adventures. That’s something you can feel good about. Product Details Injection Molded Plant-Based Resin Lumalens Color Optimized lens 100% UV protection 6-base polycarbonate lens Metal foil icon + word mark logo on both temples Integrated cam hinge