Serengeti Eyewear style Trento is a technologically advanced and superbly crafted rectangular nylon frame. The Rx-able Trento features a saddle nose bridge for a comfortable fit. Featured on the temples and on the right lens is the Serengeti logo. Serengeti Eyewear has scratch/impact resistant photochromic glass lenses that adjust to light changes in the environment and provide 100% UVA/UVB protection. Size: 62-15-125 mm