All Bamboo and sure to help you stand out from the crowd! All sunglasses include a cork sunglass case & microfiber cloth. Classic Design Lens width: 50mm Lens height: 46mm Lens colour: Brown Lenses material: TAC 1.1 Frame material: Dark Bamboo Temple: Dark Bamboo Hinge: Spring Lenses Optical Attribute: UV400 Polarized Sunglasses: Yes Weight: 24g