Serengeti MARLON SS539003

Photochromic:  Yes, Light-Adjusting Lens Size:  57x38mm (Width x Height) Lens Material:  Ultra Light Mineral Glass Frame Fit:  Temple 145, Bridge 15, Total Width 139.5mm Frame Material:  Metal Alloy Base Curve:  4x Frame Features: Adjustable Nose Pads, Spring Hinges