From Spy Optic comes a shade inspired by Dale Earnhardt Jr and named after his hometown posse - The Dirty Mo. The Dirty Mo melds the functions of an athletic frame with the aesthetics of a fashion frame. It's built from high quality propionate and features 8x4 Base Toric lenses, 8mm stop hinges, and custom metal details. As with all Spy shades, it provides 100% UV protection.