Spy Optic Dirty Mo Black/Gray Sunglasses

The Dirty Mo combines a no-nonsense appearance with long-term performance. The Dirty Mo is Dale Earnhardt Jr's signature Spy sunglasses, designed to meet Dale's personal specifications. Spy model# 670937062129.

Custom-built from high quality propionate
8 x 4 Base Arc lenses
Sturdy 8 MM stop hinge
100% UVA, B & C protection
Frame measures: 59-18-121
Made in Italy
One year limited warranty.  

Dirty Mo Technology

Propionate Frame:
Spy Optic is one of a few elite manufacturers to offer frames crafted in premium propionate. Propionate is a composite material offering an excellent balance of toughness, hardness, strength, stability and gloss, plus an overall warm tactile feel. Frames constructed in propionate have a sleek, dense finish that is modern, comfortable, and durable.

Base Curvature:
8-Significant wrap-around coverage
Spy’s spherical sunglasses are available in 4-, 6-, 8-, or 9-Base. “Base curve” refers to the amount of “wrap” that a lens has, which in turn affects the curvature of the frame. A flatter lens—such as a 6-Base—will create a much flatter, squared frame shape, whereas a higher base number will cause a sleek, wraparound fit.

Lens Curvature:
Spy Optic’s ARC (Accurate Radius Curvature) lenses are used in to provide the highest quality and most optically correct, distortion-free vision. ARC lenses have an asymmetrical curvature, eliminating lens distortion and providing increased visual acuity.