All Spy sunglasses have crystal clear 8-base ARC® PC lenses that provide optically correct, distortion-free vision and block 100% UV rays and filter out UVA, UVB, and UVC, the 3 most harmful of the sun's billion rays.  The lenses are also shatterproof and scratch-proof.

Spy frames are constructed of either Propionate or Grilamid.  SPY is one of a few elite manufacturers to offer frames crafted in premium Propionate. Frames constructed of Propionate have a sleek, dense finish that is modern, comfortable, and durable.  SPY uses flexible Grilamid™ in its Scoop® Series and other sport-friendly styles. Grilamid™ frames are light, strong, shatter-resistant, comfortable, and memory retentive in variable temperatures.

The Dirty Mo Polarized sunglasses are custom-built from high quality Propionate and have an 8mm stop hinge.

• Custom-built from high quality Propionate
• 8 x 4 base tonic ARC lenses
• 100% UV protection
• 8mm stop hinge