Stopper hinge to prevent the temple from scratching the lens</br>Cr 39 lenses that are lightweight?? scratch-resistant and ultra violet protective</br>A contoured fitted bridge</br>Case Included</br></br>Product Description</br></br>CK Platinum C K3157S Sunglasses 243 Navy</br><br/>http://www.amazon.com/gp/product/B00K5RIKEQ