Lens: Brown Gradient</br>Plastic</br></br>Product Description</br></br><b>Ray-Ban Sunglasses??</b> style RB4171 Erika is a rx-able round wayfarer-inspired plastic frame with metal temples. The RB4171 features a saddle nose bridge and plastic temple tips for extreme comfort. The Ray-Ban logo is featured on the temples. Ray-Ban Sunglasses have scratch/impact-resistant lenses.</br><br/>http://www.amazon.com/gp/product/B00CEOM3KU